diff options
Diffstat (limited to 'package/rt2x00/src/rt2x00usb.h')
| -rw-r--r-- | package/rt2x00/src/rt2x00usb.h | 94 |
1 files changed, 71 insertions, 23 deletions
diff --git a/package/rt2x00/src/rt2x00usb.h b/package/rt2x00/src/rt2x00usb.h index 91627f2dd..2681abe4d 100644 --- a/package/rt2x00/src/rt2x00usb.h +++ b/package/rt2x00/src/rt2x00usb.h @@ -21,7 +21,6 @@ /* Module: rt2x00usb Abstract: Data structures for the rt2x00usb module. - Supported chipsets: rt2570, rt2571W & rt2671. */ #ifndef RT2X00USB_H @@ -35,20 +34,26 @@ /* * Register defines. - * When register access attempts should be repeated - * only REGISTER_BUSY_COUNT attempts with a delay - * of REGISTER_BUSY_DELAY us should be taken. + * Some registers require multiple attempts before success, + * in those cases REGISTER_BUSY_COUNT attempts should be + * taken with a REGISTER_BUSY_DELAY interval. * For USB vendor requests we need to pass a timeout * time in ms, for this we use the REGISTER_TIMEOUT, * however when loading firmware a higher value is - * required. For that we use the REGISTER_TIMEOUT_FIRMWARE. + * required. In that case we use the REGISTER_TIMEOUT_FIRMWARE. */ #define REGISTER_BUSY_COUNT 5 #define REGISTER_BUSY_DELAY 100 -#define REGISTER_TIMEOUT 20 +#define REGISTER_TIMEOUT 500 #define REGISTER_TIMEOUT_FIRMWARE 1000 /* + * Cache size + */ +#define CSR_CACHE_SIZE 8 +#define CSR_CACHE_SIZE_FIRMWARE 64 + +/* * USB request types. */ #define USB_VENDOR_REQUEST ( USB_TYPE_VENDOR | USB_RECIP_DEVICE ) @@ -80,37 +85,77 @@ #define USB_MODE_WAKEUP 0x09 /* RT73USB */ /* - * USB devices need an additional Beacon (guardian beacon) to be generated. + * Used to read/write from/to the device. + * This is the main function to communicate with the device, + * 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. */ -#undef BEACON_ENTRIES -#define BEACON_ENTRIES 2 +int rt2x00usb_vendor_request(const 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); /* - * Interfacing with the HW. + * Used to read/write from/to the device. + * 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 + * kmalloc. Hence the reason for using a previously allocated cache + * which has been allocated properly. */ -int rt2x00usb_vendor_request(const struct rt2x00_dev *rt2x00dev, - const u8 request, const u8 type, const u16 offset, - u32 value, void *buffer, const u16 buffer_length, const u16 timeout); +int rt2x00usb_vendor_request_buff(const struct rt2x00_dev *rt2x00dev, + const u8 request, const u8 requesttype, + const u16 offset, void *buffer, + const u16 buffer_length, const int timeout); /* - * Radio handlers + * 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. */ -void rt2x00usb_enable_radio(struct rt2x00_dev *rt2x00dev); -void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev); +static inline int rt2x00usb_vendor_request_sw(const struct rt2x00_dev + *rt2x00dev, + const u8 request, + const u16 offset, + const u16 value, + const int timeout) +{ + return rt2x00usb_vendor_request(rt2x00dev, request, + USB_VENDOR_REQUEST_OUT, offset, + value, NULL, 0, timeout); +} /* - * Beacon handlers. + * 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. */ -int rt2x00usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_control *control); -void rt2x00usb_beacondone(struct urb *urb); +static inline int rt2x00usb_eeprom_read(const struct rt2x00_dev *rt2x00dev, + __le16 *eeprom, const u16 lenght) +{ + int timeout = REGISTER_TIMEOUT * (lenght / sizeof(u16)); + + return rt2x00usb_vendor_request(rt2x00dev, USB_EEPROM_READ, + USB_VENDOR_REQUEST_IN, 0x0000, + 0x0000, eeprom, lenght, timeout); +} + +/* + * 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_ring *ring, struct sk_buff *skb, + struct ieee80211_tx_control *control); /* * Device initialization handlers. @@ -122,11 +167,14 @@ void rt2x00usb_uninitialize(struct rt2x00_dev *rt2x00dev); * USB driver handlers. */ int rt2x00usb_probe(struct usb_interface *usb_intf, - const struct usb_device_id *id); + const struct usb_device_id *id); void rt2x00usb_disconnect(struct usb_interface *usb_intf); #ifdef CONFIG_PM int rt2x00usb_suspend(struct usb_interface *usb_intf, pm_message_t state); int rt2x00usb_resume(struct usb_interface *usb_intf); +#else +#define rt2x00usb_suspend NULL +#define rt2x00usb_resume NULL #endif /* CONFIG_PM */ #endif /* RT2X00USB_H */ |