mirror of https://gitee.com/openkylin/linux.git
191 lines
5.9 KiB
C
191 lines
5.9 KiB
C
/*
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Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
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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, write to the
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Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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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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/*
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* This variable should be used with the
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* usb_driver structure initialization.
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*/
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#define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops)
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/*
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* Register defines.
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* Some registers require multiple attempts before success,
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* in those cases REGISTER_BUSY_COUNT attempts should be
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* taken with a REGISTER_BUSY_DELAY interval.
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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_BUSY_COUNT 5
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#define REGISTER_BUSY_DELAY 100
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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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* Cache size
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*/
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#define CSR_CACHE_SIZE 8
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#define CSR_CACHE_SIZE_FIRMWARE 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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* USB vendor commands.
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*/
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#define USB_DEVICE_MODE 0x01
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#define USB_SINGLE_WRITE 0x02
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#define USB_SINGLE_READ 0x03
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#define USB_MULTI_WRITE 0x06
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#define USB_MULTI_READ 0x07
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#define USB_EEPROM_WRITE 0x08
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#define USB_EEPROM_READ 0x09
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#define USB_LED_CONTROL 0x0a /* RT73USB */
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#define USB_RX_CONTROL 0x0c
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/*
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* Device modes offset
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*/
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#define USB_MODE_RESET 0x01
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#define USB_MODE_UNPLUG 0x02
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#define USB_MODE_FUNCTION 0x03
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#define USB_MODE_TEST 0x04
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#define USB_MODE_SLEEP 0x07 /* RT73USB */
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#define USB_MODE_FIRMWARE 0x08 /* RT73USB */
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#define USB_MODE_WAKEUP 0x09 /* RT73USB */
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/*
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* Used to read/write from/to the device.
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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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* Used to read/write from/to the device.
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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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* 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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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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* 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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* 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 lenght)
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{
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int timeout = REGISTER_TIMEOUT * (lenght / sizeof(u16));
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return rt2x00usb_vendor_request(rt2x00dev, USB_EEPROM_READ,
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USB_VENDOR_REQUEST_IN, 0x0000,
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0x0000, eeprom, lenght, timeout);
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}
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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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* TX data handlers.
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*/
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int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
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struct data_ring *ring, struct sk_buff *skb,
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struct ieee80211_tx_control *control);
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/*
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* Device initialization handlers.
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*/
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void rt2x00usb_init_rxentry(struct rt2x00_dev *rt2x00dev,
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struct data_entry *entry);
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void rt2x00usb_init_txentry(struct rt2x00_dev *rt2x00dev,
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struct data_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 usb_device_id *id);
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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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