mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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de51b35d50
The device 057c:8501 (AVM Fritz! WLAN v2 rev. B) currently does not load. One thing observed is that the vendors driver detects EFUSE mode for this device, but rt2800usb does not. This is due to rt2800usb lacking a check for the firmware mode present in the vendors driver, that this patch adopts for rt2800usb. With this patch applied, the 'RF chipset' detection does no longer fail. Signed-off-by: Michael Braun <michael-dev@fami-braun.de> Acked-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
442 lines
14 KiB
C
442 lines
14 KiB
C
/*
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Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
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<http://rt2x00.serialmonkey.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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Module: rt2x00usb
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Abstract: Data structures for the rt2x00usb module.
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*/
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#ifndef RT2X00USB_H
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#define RT2X00USB_H
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#include <linux/usb.h>
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#define to_usb_device_intf(d) \
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({ \
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struct usb_interface *intf = to_usb_interface(d); \
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interface_to_usbdev(intf); \
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})
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/*
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* For USB vendor requests we need to pass a timeout
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* time in ms, for this we use the REGISTER_TIMEOUT,
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* however when loading firmware a higher value is
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* required. In that case we use the REGISTER_TIMEOUT_FIRMWARE.
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*/
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#define REGISTER_TIMEOUT 500
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#define REGISTER_TIMEOUT_FIRMWARE 1000
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/**
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* REGISTER_TIMEOUT16 - Determine the timeout for 16bit register access
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* @__datalen: Data length
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*/
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#define REGISTER_TIMEOUT16(__datalen) \
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( REGISTER_TIMEOUT * ((__datalen) / sizeof(u16)) )
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/**
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* REGISTER_TIMEOUT32 - Determine the timeout for 32bit register access
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* @__datalen: Data length
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*/
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#define REGISTER_TIMEOUT32(__datalen) \
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( REGISTER_TIMEOUT * ((__datalen) / sizeof(u32)) )
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/*
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* Cache size
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*/
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#define CSR_CACHE_SIZE 64
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/*
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* USB request types.
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*/
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#define USB_VENDOR_REQUEST ( USB_TYPE_VENDOR | USB_RECIP_DEVICE )
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#define USB_VENDOR_REQUEST_IN ( USB_DIR_IN | USB_VENDOR_REQUEST )
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#define USB_VENDOR_REQUEST_OUT ( USB_DIR_OUT | USB_VENDOR_REQUEST )
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/**
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* enum rt2x00usb_vendor_request: USB vendor commands.
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*/
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enum rt2x00usb_vendor_request {
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USB_DEVICE_MODE = 1,
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USB_SINGLE_WRITE = 2,
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USB_SINGLE_READ = 3,
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USB_MULTI_WRITE = 6,
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USB_MULTI_READ = 7,
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USB_EEPROM_WRITE = 8,
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USB_EEPROM_READ = 9,
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USB_LED_CONTROL = 10, /* RT73USB */
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USB_RX_CONTROL = 12,
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};
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/**
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* enum rt2x00usb_mode_offset: Device modes offset.
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*/
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enum rt2x00usb_mode_offset {
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USB_MODE_RESET = 1,
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USB_MODE_UNPLUG = 2,
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USB_MODE_FUNCTION = 3,
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USB_MODE_TEST = 4,
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USB_MODE_SLEEP = 7, /* RT73USB */
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USB_MODE_FIRMWARE = 8, /* RT73USB */
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USB_MODE_WAKEUP = 9, /* RT73USB */
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USB_MODE_AUTORUN = 17, /* RT2800USB */
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};
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/**
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* rt2x00usb_vendor_request - Send register command to device
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* @rt2x00dev: Pointer to &struct rt2x00_dev
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* @request: USB vendor command (See &enum rt2x00usb_vendor_request)
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* @requesttype: Request type &USB_VENDOR_REQUEST_*
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* @offset: Register offset to perform action on
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* @value: Value to write to device
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* @buffer: Buffer where information will be read/written to by device
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* @buffer_length: Size of &buffer
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* @timeout: Operation timeout
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*
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* This is the main function to communicate with the device,
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* the &buffer argument _must_ either be NULL or point to
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* a buffer allocated by kmalloc. Failure to do so can lead
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* to unexpected behavior depending on the architecture.
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*/
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int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev,
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const u8 request, const u8 requesttype,
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const u16 offset, const u16 value,
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void *buffer, const u16 buffer_length,
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const int timeout);
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/**
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* rt2x00usb_vendor_request_buff - Send register command to device (buffered)
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* @rt2x00dev: Pointer to &struct rt2x00_dev
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* @request: USB vendor command (See &enum rt2x00usb_vendor_request)
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* @requesttype: Request type &USB_VENDOR_REQUEST_*
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* @offset: Register offset to perform action on
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* @buffer: Buffer where information will be read/written to by device
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* @buffer_length: Size of &buffer
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* @timeout: Operation timeout
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*
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* This function will use a previously with kmalloc allocated cache
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* to communicate with the device. The contents of the buffer pointer
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* will be copied to this cache when writing, or read from the cache
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* when reading.
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* Buffers send to &rt2x00usb_vendor_request _must_ be allocated with
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* kmalloc. Hence the reason for using a previously allocated cache
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* which has been allocated properly.
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*/
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int rt2x00usb_vendor_request_buff(struct rt2x00_dev *rt2x00dev,
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const u8 request, const u8 requesttype,
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const u16 offset, void *buffer,
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const u16 buffer_length, const int timeout);
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/**
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* rt2x00usb_vendor_request_buff - Send register command to device (buffered)
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* @rt2x00dev: Pointer to &struct rt2x00_dev
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* @request: USB vendor command (See &enum rt2x00usb_vendor_request)
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* @requesttype: Request type &USB_VENDOR_REQUEST_*
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* @offset: Register offset to perform action on
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* @buffer: Buffer where information will be read/written to by device
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* @buffer_length: Size of &buffer
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* @timeout: Operation timeout
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*
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* A version of &rt2x00usb_vendor_request_buff which must be called
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* if the usb_cache_mutex is already held.
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*/
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int rt2x00usb_vendor_req_buff_lock(struct rt2x00_dev *rt2x00dev,
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const u8 request, const u8 requesttype,
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const u16 offset, void *buffer,
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const u16 buffer_length, const int timeout);
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/**
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* rt2x00usb_vendor_request_sw - Send single register command to device
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* @rt2x00dev: Pointer to &struct rt2x00_dev
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* @request: USB vendor command (See &enum rt2x00usb_vendor_request)
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* @offset: Register offset to perform action on
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* @value: Value to write to device
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* @timeout: Operation timeout
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*
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* Simple wrapper around rt2x00usb_vendor_request to write a single
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* command to the device. Since we don't use the buffer argument we
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* don't have to worry about kmalloc here.
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*/
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static inline int rt2x00usb_vendor_request_sw(struct rt2x00_dev *rt2x00dev,
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const u8 request,
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const u16 offset,
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const u16 value,
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const int timeout)
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{
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return rt2x00usb_vendor_request(rt2x00dev, request,
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USB_VENDOR_REQUEST_OUT, offset,
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value, NULL, 0, timeout);
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}
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/**
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* rt2x00usb_eeprom_read - Read eeprom from device
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* @rt2x00dev: Pointer to &struct rt2x00_dev
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* @eeprom: Pointer to eeprom array to store the information in
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* @length: Number of bytes to read from the eeprom
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*
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* Simple wrapper around rt2x00usb_vendor_request to read the eeprom
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* from the device. Note that the eeprom argument _must_ be allocated using
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* kmalloc for correct handling inside the kernel USB layer.
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*/
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static inline int rt2x00usb_eeprom_read(struct rt2x00_dev *rt2x00dev,
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__le16 *eeprom, const u16 length)
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{
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return rt2x00usb_vendor_request(rt2x00dev, USB_EEPROM_READ,
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USB_VENDOR_REQUEST_IN, 0, 0,
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eeprom, length,
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REGISTER_TIMEOUT16(length));
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}
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/**
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* rt2x00usb_register_read - Read 32bit register word
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* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
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* @offset: Register offset
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* @value: Pointer to where register contents should be stored
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*
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* This function is a simple wrapper for 32bit register access
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* through rt2x00usb_vendor_request_buff().
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*/
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static inline void rt2x00usb_register_read(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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u32 *value)
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{
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__le32 reg;
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rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
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USB_VENDOR_REQUEST_IN, offset,
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®, sizeof(reg), REGISTER_TIMEOUT);
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*value = le32_to_cpu(reg);
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}
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/**
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* rt2x00usb_register_read_lock - Read 32bit register word
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* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
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* @offset: Register offset
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* @value: Pointer to where register contents should be stored
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*
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* This function is a simple wrapper for 32bit register access
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* through rt2x00usb_vendor_req_buff_lock().
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*/
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static inline void rt2x00usb_register_read_lock(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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u32 *value)
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{
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__le32 reg;
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rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_READ,
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USB_VENDOR_REQUEST_IN, offset,
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®, sizeof(reg), REGISTER_TIMEOUT);
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*value = le32_to_cpu(reg);
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}
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/**
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* rt2x00usb_register_multiread - Read 32bit register words
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* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
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* @offset: Register offset
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* @value: Pointer to where register contents should be stored
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* @length: Length of the data
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*
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* This function is a simple wrapper for 32bit register access
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* through rt2x00usb_vendor_request_buff().
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*/
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static inline void rt2x00usb_register_multiread(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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void *value, const u32 length)
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{
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rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_READ,
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USB_VENDOR_REQUEST_IN, offset,
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value, length,
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REGISTER_TIMEOUT32(length));
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}
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/**
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* rt2x00usb_register_write - Write 32bit register word
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* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
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* @offset: Register offset
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* @value: Data which should be written
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*
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* This function is a simple wrapper for 32bit register access
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* through rt2x00usb_vendor_request_buff().
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*/
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static inline void rt2x00usb_register_write(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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u32 value)
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{
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__le32 reg = cpu_to_le32(value);
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rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
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USB_VENDOR_REQUEST_OUT, offset,
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®, sizeof(reg), REGISTER_TIMEOUT);
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}
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/**
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* rt2x00usb_register_write_lock - Write 32bit register word
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* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
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* @offset: Register offset
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* @value: Data which should be written
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*
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* This function is a simple wrapper for 32bit register access
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* through rt2x00usb_vendor_req_buff_lock().
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*/
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static inline void rt2x00usb_register_write_lock(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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u32 value)
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{
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__le32 reg = cpu_to_le32(value);
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rt2x00usb_vendor_req_buff_lock(rt2x00dev, USB_MULTI_WRITE,
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USB_VENDOR_REQUEST_OUT, offset,
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®, sizeof(reg), REGISTER_TIMEOUT);
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}
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/**
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* rt2x00usb_register_multiwrite - Write 32bit register words
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* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
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* @offset: Register offset
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* @value: Data which should be written
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* @length: Length of the data
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*
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* This function is a simple wrapper for 32bit register access
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* through rt2x00usb_vendor_request_buff().
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*/
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static inline void rt2x00usb_register_multiwrite(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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const void *value,
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const u32 length)
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{
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rt2x00usb_vendor_request_buff(rt2x00dev, USB_MULTI_WRITE,
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USB_VENDOR_REQUEST_OUT, offset,
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(void *)value, length,
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REGISTER_TIMEOUT32(length));
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}
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/**
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* rt2x00usb_regbusy_read - Read from register with busy check
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* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
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* @offset: Register offset
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* @field: Field to check if register is busy
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* @reg: Pointer to where register contents should be stored
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*
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* This function will read the given register, and checks if the
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* register is busy. If it is, it will sleep for a couple of
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* microseconds before reading the register again. If the register
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* is not read after a certain timeout, this function will return
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* FALSE.
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*/
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int rt2x00usb_regbusy_read(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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const struct rt2x00_field32 field,
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u32 *reg);
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/**
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* rt2x00usb_register_read_async - Asynchronously read 32bit register word
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* @rt2x00dev: Device pointer, see &struct rt2x00_dev.
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* @offset: Register offset
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* @callback: Functon to call when read completes.
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*
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* Submit a control URB to read a 32bit register. This safe to
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* be called from atomic context. The callback will be called
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* when the URB completes. Otherwise the function is similar
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* to rt2x00usb_register_read().
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* When the callback function returns false, the memory will be cleaned up,
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* when it returns true, the urb will be fired again.
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*/
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void rt2x00usb_register_read_async(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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bool (*callback)(struct rt2x00_dev*, int, u32));
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/*
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* Radio handlers
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*/
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void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev);
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/**
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* struct queue_entry_priv_usb: Per entry USB specific information
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*
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* @urb: Urb structure used for device communication.
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*/
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struct queue_entry_priv_usb {
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struct urb *urb;
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};
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/**
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* struct queue_entry_priv_usb_bcn: Per TX entry USB specific information
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*
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* The first section should match &struct queue_entry_priv_usb exactly.
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* rt2500usb can use this structure to send a guardian byte when working
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* with beacons.
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*
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* @urb: Urb structure used for device communication.
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* @guardian_data: Set to 0, used for sending the guardian data.
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* @guardian_urb: Urb structure used to send the guardian data.
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*/
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struct queue_entry_priv_usb_bcn {
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struct urb *urb;
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unsigned int guardian_data;
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struct urb *guardian_urb;
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};
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/**
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* rt2x00usb_kick_queue - Kick data queue
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* @queue: Data queue to kick
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*
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* This will walk through all entries of the queue and push all pending
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* frames to the hardware as a single burst.
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*/
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void rt2x00usb_kick_queue(struct data_queue *queue);
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/**
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* rt2x00usb_flush_queue - Flush data queue
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* @queue: Data queue to stop
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* @drop: True to drop all pending frames.
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*
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* This will walk through all entries of the queue and will optionally
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* kill all URB's which were send to the device, or at least wait until
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* they have been returned from the device..
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*/
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void rt2x00usb_flush_queue(struct data_queue *queue, bool drop);
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/**
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* rt2x00usb_watchdog - Watchdog for USB communication
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* @rt2x00dev: Pointer to &struct rt2x00_dev
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*
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* Check the health of the USB communication and determine
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* if timeouts have occurred. If this is the case, this function
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* will reset all communication to restore functionality again.
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*/
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void rt2x00usb_watchdog(struct rt2x00_dev *rt2x00dev);
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/*
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* Device initialization handlers.
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*/
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void rt2x00usb_clear_entry(struct queue_entry *entry);
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int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev);
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void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev);
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/*
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* USB driver handlers.
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*/
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int rt2x00usb_probe(struct usb_interface *usb_intf,
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const struct rt2x00_ops *ops);
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void rt2x00usb_disconnect(struct usb_interface *usb_intf);
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#ifdef CONFIG_PM
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int rt2x00usb_suspend(struct usb_interface *usb_intf, pm_message_t state);
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int rt2x00usb_resume(struct usb_interface *usb_intf);
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#else
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#define rt2x00usb_suspend NULL
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#define rt2x00usb_resume NULL
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#endif /* CONFIG_PM */
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#endif /* RT2X00USB_H */
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