X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Frt2x00%2Frt2x00usb.h;h=460d32c444d136c902096c17efd84707123cd6b9;hb=f019d51410a9b61278eeff811a1ca11d2a905241;hp=2681abe4d49eb7a4f595cbdadce556c160b4ad42;hpb=4d5709a7b7d54fc5882d2943a14988a92d48c00a;p=linux-2.6 diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h index 2681abe4d4..460d32c444 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.h +++ b/drivers/net/wireless/rt2x00/rt2x00usb.h @@ -1,5 +1,5 @@ /* - Copyright (C) 2004 - 2007 rt2x00 SourceForge Project + Copyright (C) 2004 - 2008 rt2x00 SourceForge Project This program is free software; you can redistribute it and/or modify @@ -47,6 +47,20 @@ #define REGISTER_TIMEOUT 500 #define REGISTER_TIMEOUT_FIRMWARE 1000 +/** + * REGISTER_TIMEOUT16 - Determine the timeout for 16bit register access + * @__datalen: Data length + */ +#define REGISTER_TIMEOUT16(__datalen) \ + ( REGISTER_TIMEOUT * ((__datalen) / sizeof(u16)) ) + +/** + * REGISTER_TIMEOUT32 - Determine the timeout for 32bit register access + * @__datalen: Data length + */ +#define REGISTER_TIMEOUT32(__datalen) \ + ( REGISTER_TIMEOUT * ((__datalen) / sizeof(u32)) ) + /* * Cache size */ @@ -60,65 +74,110 @@ #define USB_VENDOR_REQUEST_IN ( USB_DIR_IN | USB_VENDOR_REQUEST ) #define USB_VENDOR_REQUEST_OUT ( USB_DIR_OUT | USB_VENDOR_REQUEST ) -/* - * USB vendor commands. - */ -#define USB_DEVICE_MODE 0x01 -#define USB_SINGLE_WRITE 0x02 -#define USB_SINGLE_READ 0x03 -#define USB_MULTI_WRITE 0x06 -#define USB_MULTI_READ 0x07 -#define USB_EEPROM_WRITE 0x08 -#define USB_EEPROM_READ 0x09 -#define USB_LED_CONTROL 0x0a /* RT73USB */ -#define USB_RX_CONTROL 0x0c +/** + * enum rt2x00usb_vendor_request: USB vendor commands. + */ +enum rt2x00usb_vendor_request { + USB_DEVICE_MODE = 1, + USB_SINGLE_WRITE = 2, + USB_SINGLE_READ = 3, + USB_MULTI_WRITE = 6, + USB_MULTI_READ = 7, + USB_EEPROM_WRITE = 8, + USB_EEPROM_READ = 9, + USB_LED_CONTROL = 10, /* RT73USB */ + USB_RX_CONTROL = 12, +}; -/* - * Device modes offset +/** + * enum rt2x00usb_mode_offset: Device modes offset. */ -#define USB_MODE_RESET 0x01 -#define USB_MODE_UNPLUG 0x02 -#define USB_MODE_FUNCTION 0x03 -#define USB_MODE_TEST 0x04 -#define USB_MODE_SLEEP 0x07 /* RT73USB */ -#define USB_MODE_FIRMWARE 0x08 /* RT73USB */ -#define USB_MODE_WAKEUP 0x09 /* RT73USB */ +enum rt2x00usb_mode_offset { + USB_MODE_RESET = 1, + USB_MODE_UNPLUG = 2, + USB_MODE_FUNCTION = 3, + USB_MODE_TEST = 4, + USB_MODE_SLEEP = 7, /* RT73USB */ + USB_MODE_FIRMWARE = 8, /* RT73USB */ + USB_MODE_WAKEUP = 9, /* RT73USB */ +}; -/* - * Used to read/write from/to the device. +/** + * rt2x00usb_vendor_request - Send register command to device + * @rt2x00dev: Pointer to &struct rt2x00_dev + * @request: USB vendor command (See &enum rt2x00usb_vendor_request) + * @requesttype: Request type &USB_VENDOR_REQUEST_* + * @offset: Register offset to perform action on + * @value: Value to write to device + * @buffer: Buffer where information will be read/written to by device + * @buffer_length: Size of &buffer + * @timeout: Operation timeout + * * This is the main function to communicate with the device, - * the buffer argument _must_ either be NULL or point to + * the &buffer argument _must_ either be NULL or point to * a buffer allocated by kmalloc. Failure to do so can lead * to unexpected behavior depending on the architecture. */ -int rt2x00usb_vendor_request(const struct rt2x00_dev *rt2x00dev, +int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev, const u8 request, const u8 requesttype, const u16 offset, const u16 value, void *buffer, const u16 buffer_length, const int timeout); -/* - * Used to read/write from/to the device. +/** + * rt2x00usb_vendor_request_buff - Send register command to device (buffered) + * @rt2x00dev: Pointer to &struct rt2x00_dev + * @request: USB vendor command (See &enum rt2x00usb_vendor_request) + * @requesttype: Request type &USB_VENDOR_REQUEST_* + * @offset: Register offset to perform action on + * @buffer: Buffer where information will be read/written to by device + * @buffer_length: Size of &buffer + * @timeout: Operation timeout + * * This function will use a previously with kmalloc allocated cache * to communicate with the device. The contents of the buffer pointer * will be copied to this cache when writing, or read from the cache * when reading. - * Buffers send to rt2x00usb_vendor_request _must_ be allocated with + * Buffers send to &rt2x00usb_vendor_request _must_ be allocated with * kmalloc. Hence the reason for using a previously allocated cache * which has been allocated properly. */ -int rt2x00usb_vendor_request_buff(const struct rt2x00_dev *rt2x00dev, +int rt2x00usb_vendor_request_buff(struct rt2x00_dev *rt2x00dev, const u8 request, const u8 requesttype, const u16 offset, void *buffer, const u16 buffer_length, const int timeout); -/* +/** + * rt2x00usb_vendor_request_buff - Send register command to device (buffered) + * @rt2x00dev: Pointer to &struct rt2x00_dev + * @request: USB vendor command (See &enum rt2x00usb_vendor_request) + * @requesttype: Request type &USB_VENDOR_REQUEST_* + * @offset: Register offset to perform action on + * @buffer: Buffer where information will be read/written to by device + * @buffer_length: Size of &buffer + * @timeout: Operation timeout + * + * A version of &rt2x00usb_vendor_request_buff which must be called + * if the usb_cache_mutex is already held. + */ +int rt2x00usb_vendor_req_buff_lock(struct rt2x00_dev *rt2x00dev, + const u8 request, const u8 requesttype, + const u16 offset, void *buffer, + const u16 buffer_length, const int timeout); + +/** + * rt2x00usb_vendor_request_sw - Send single register command to device + * @rt2x00dev: Pointer to &struct rt2x00_dev + * @request: USB vendor command (See &enum rt2x00usb_vendor_request) + * @offset: Register offset to perform action on + * @value: Value to write to device + * @timeout: Operation timeout + * * Simple wrapper around rt2x00usb_vendor_request to write a single * command to the device. Since we don't use the buffer argument we * don't have to worry about kmalloc here. */ -static inline int rt2x00usb_vendor_request_sw(const struct rt2x00_dev - *rt2x00dev, +static inline int rt2x00usb_vendor_request_sw(struct rt2x00_dev *rt2x00dev, const u8 request, const u16 offset, const u16 value, @@ -129,37 +188,81 @@ static inline int rt2x00usb_vendor_request_sw(const struct rt2x00_dev value, NULL, 0, timeout); } -/* +/** + * rt2x00usb_eeprom_read - Read eeprom from device + * @rt2x00dev: Pointer to &struct rt2x00_dev + * @eeprom: Pointer to eeprom array to store the information in + * @length: Number of bytes to read from the eeprom + * * Simple wrapper around rt2x00usb_vendor_request to read the eeprom * from the device. Note that the eeprom argument _must_ be allocated using * kmalloc for correct handling inside the kernel USB layer. */ -static inline int rt2x00usb_eeprom_read(const struct rt2x00_dev *rt2x00dev, - __le16 *eeprom, const u16 lenght) +static inline int rt2x00usb_eeprom_read(struct rt2x00_dev *rt2x00dev, + __le16 *eeprom, const u16 length) { - int timeout = REGISTER_TIMEOUT * (lenght / sizeof(u16)); - return rt2x00usb_vendor_request(rt2x00dev, USB_EEPROM_READ, - USB_VENDOR_REQUEST_IN, 0x0000, - 0x0000, eeprom, lenght, timeout); + USB_VENDOR_REQUEST_IN, 0, 0, + eeprom, length, + REGISTER_TIMEOUT16(length)); } /* * Radio handlers */ -void rt2x00usb_enable_radio(struct rt2x00_dev *rt2x00dev); void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev); /* * TX data handlers. */ int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev, - struct data_ring *ring, struct sk_buff *skb, - struct ieee80211_tx_control *control); + struct data_queue *queue, struct sk_buff *skb); + +/** + * struct queue_entry_priv_usb: Per entry USB specific information + * + * @urb: Urb structure used for device communication. + */ +struct queue_entry_priv_usb { + struct urb *urb; +}; + +/** + * struct queue_entry_priv_usb_bcn: Per TX entry USB specific information + * + * The first section should match &struct queue_entry_priv_usb exactly. + * rt2500usb can use this structure to send a guardian byte when working + * with beacons. + * + * @urb: Urb structure used for device communication. + * @guardian_data: Set to 0, used for sending the guardian data. + * @guardian_urb: Urb structure used to send the guardian data. + */ +struct queue_entry_priv_usb_bcn { + struct urb *urb; + + unsigned int guardian_data; + struct urb *guardian_urb; +}; + +/** + * rt2x00usb_kick_tx_queue - Kick data queue + * @rt2x00dev: Pointer to &struct rt2x00_dev + * @qid: Data queue to kick + * + * This will walk through all entries of the queue and push all pending + * frames to the hardware as a single burst. + */ +void rt2x00usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, + const enum data_queue_qid qid); /* * Device initialization handlers. */ +void rt2x00usb_init_rxentry(struct rt2x00_dev *rt2x00dev, + struct queue_entry *entry); +void rt2x00usb_init_txentry(struct rt2x00_dev *rt2x00dev, + struct queue_entry *entry); int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev); void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev);