/*
- Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+ Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
#ifndef RT2X00USB_H
#define RT2X00USB_H
+#define to_usb_device_intf(d) \
+({ \
+ struct usb_interface *intf = to_usb_interface(d); \
+ interface_to_usbdev(intf); \
+})
+
/*
* This variable should be used with the
* usb_driver structure initialization.
#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
*/
#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.
*/
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.
*/
const u16 offset, void *buffer,
const u16 buffer_length, const int timeout);
-/*
- * A version of rt2x00usb_vendor_request_buff which must be called
- * if the usb_cache_mutex is already held. */
+/**
+ * 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.
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(struct rt2x00_dev *rt2x00dev,
- __le16 *eeprom, const u16 lenght)
+ __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));
}
/*
*/
void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev);
-/*
- * TX data handlers.
+/**
+ * rt2x00usb_write_tx_data - Initialize URB for TX operation
+ * @entry: The entry where the frame is located
+ *
+ * This function will initialize the URB and skb descriptor
+ * to prepare the entry for the actual TX operation.
+ */
+int rt2x00usb_write_tx_data(struct queue_entry *entry);
+
+/**
+ * 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.
*/
-int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev,
- struct data_ring *ring, struct sk_buff *skb,
- struct ieee80211_tx_control *control);
+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 data_entry *entry);
+ struct queue_entry *entry);
void rt2x00usb_init_txentry(struct rt2x00_dev *rt2x00dev,
- struct data_entry *entry);
+ struct queue_entry *entry);
int rt2x00usb_initialize(struct rt2x00_dev *rt2x00dev);
void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev);
git.openpandora.org / pandora-kernel.git / blobdiff