diff options
Diffstat (limited to 'package/rt2x00/src/rt2x00.h')
| -rw-r--r-- | package/rt2x00/src/rt2x00.h | 978 |
1 files changed, 351 insertions, 627 deletions
diff --git a/package/rt2x00/src/rt2x00.h b/package/rt2x00/src/rt2x00.h index 33b5094358..c8f16f161c 100644 --- a/package/rt2x00/src/rt2x00.h +++ b/package/rt2x00/src/rt2x00.h @@ -21,8 +21,6 @@ /* Module: rt2x00 Abstract: rt2x00 global information. - Supported chipsets: RT2460, RT2560, RT2570, - rt2561, rt2561s, rt2661, rt2571W & rt2671. */ #ifndef RT2X00_H @@ -32,14 +30,19 @@ #include <linux/prefetch.h> #include <linux/skbuff.h> #include <linux/workqueue.h> +#include <linux/firmware.h> #include <net/mac80211.h> +#include "rt2x00debug.h" +#include "rt2x00reg.h" +#include "rt2x00ring.h" + /* * Module information. * DRV_NAME should be set within the individual module source files. */ -#define DRV_VERSION "2.0.2" +#define DRV_VERSION "2.0.10" #define DRV_PROJECT "http://rt2x00.serialmonkey.com" /* @@ -48,18 +51,17 @@ */ #define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \ printk(__kernlvl "%s -> %s: %s - " __msg, \ - wiphy_name(rt2x00dev->hw->wiphy), \ - __FUNCTION__, __lvl, ##__args) + wiphy_name((__dev)->hw->wiphy), __FUNCTION__, __lvl, ##__args) -#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \ - printk(__kernlvl "%s -> %s: %s - " __msg, \ - DRV_NAME, __FUNCTION__, __lvl, ##__args) +#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \ + printk(__kernlvl "%s -> %s: %s - " __msg, \ + DRV_NAME, __FUNCTION__, __lvl, ##__args) #ifdef CONFIG_RT2X00_DEBUG -#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \ +#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \ DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args); -#else /* CONFIG_RT2X00_DEBUG */ -#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \ +#else +#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \ do { } while (0) #endif /* CONFIG_RT2X00_DEBUG */ @@ -98,14 +100,18 @@ /* * Number of entries in a packet ring. + * PCI devices only need 1 Beacon entry, + * but USB devices require a second because they + * have to send a Guardian byte first. */ #define RX_ENTRIES 12 #define TX_ENTRIES 12 #define ATIM_ENTRIES 1 -#define BEACON_ENTRIES 1 +#define BEACON_ENTRIES 2 /* * Standard timing and size defines. + * These values should follow the ieee80211 specifications. */ #define ACK_SIZE 14 #define IEEE80211_HEADER 24 @@ -125,197 +131,22 @@ /* * IEEE802.11 header defines */ -#define is_rts_frame(__fc) \ - ( !!((((__fc) & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && \ - (((__fc) & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_RTS)) ) -#define is_cts_frame(__fc) \ - ( !!((((__fc) & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && \ - (((__fc) & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_CTS)) ) -#define is_probe_resp(__fc) \ - ( !!((((__fc) & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) && \ - (((__fc) & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)) ) - -/* - * Interval defines - */ -#define LINK_TUNE_INTERVAL ( round_jiffies(HZ) ) -#define RFKILL_POLL_INTERVAL ( HZ / 4 ) - -/* - * TX result flags. - */ -enum TX_STATUS { - TX_SUCCESS = 0, - TX_SUCCESS_RETRY = 1, - TX_FAIL_RETRY = 2, - TX_FAIL_INVALID = 3, - TX_FAIL_OTHER = 4, -}; - -/* - * Antenna values - */ -enum antenna { - ANTENNA_DIVERSITY = 0, - ANTENNA_A = 1, - ANTENNA_B = 2, -}; - -/* - * Led mode values. - */ -enum led_mode { - LED_MODE_DEFAULT = 0, - LED_MODE_TXRX_ACTIVITY = 1, - LED_MODE_SIGNAL_STRENGTH = 2, - LED_MODE_ASUS = 3, - LED_MODE_ALPHA = 4, -}; - -/* - * Device states - */ -enum dev_state { - STATE_DEEP_SLEEP = 0, - STATE_SLEEP = 1, - STATE_STANDBY = 2, - STATE_AWAKE = 3, - -/* - * Additional device states, these values are - * not strict since they are not directly passed - * into the device. - */ - STATE_RADIO_ON, - STATE_RADIO_OFF, - STATE_RADIO_RX_ON, - STATE_RADIO_RX_OFF, -}; - -/* - * IFS backoff values - */ -enum ifs { - IFS_BACKOFF = 0, - IFS_SIFS = 1, - IFS_NEW_BACKOFF = 2, - IFS_NONE = 3, -}; - -/* - * Cipher types for hardware encryption - */ -enum cipher { - CIPHER_NONE = 0, - CIPHER_WEP64 = 1, - CIPHER_WEP128 = 2, - CIPHER_TKIP = 3, - CIPHER_AES = 4, -/* - * The following fields were added by rt61pci and rt73usb. - */ - CIPHER_CKIP64 = 5, - CIPHER_CKIP128 = 6, - CIPHER_TKIP_NO_MIC = 7, -}; - -/* - * Register handlers. - * We store the position of a register field inside a field structure, - * This will simplify the process of setting and reading a certain field - * inside the register while making sure the process remains byte order safe. - */ -struct rt2x00_field8 { - u8 bit_offset; - u8 bit_mask; -}; - -struct rt2x00_field16 { - u16 bit_offset; - u16 bit_mask; -}; - -struct rt2x00_field32 { - u32 bit_offset; - u32 bit_mask; -}; - -/* - * Power of two check from Linus Torvalds, - * this will check if the mask that has been - * given contains and contiguous set of bits. - */ -#define is_power_of_two(x) ( !((x) & ((x)-1)) ) -#define low_bit_mask(x) ( ((x)-1) & ~(x) ) -#define is_valid_mask(x) is_power_of_two(1 + (x) + low_bit_mask(x)) - -#define FIELD8(__mask) \ -({ \ - BUILD_BUG_ON(!(__mask) || \ - !is_valid_mask(__mask) || \ - (__mask) != (u8)(__mask)); \ - (struct rt2x00_field8) { \ - __ffs(__mask), (__mask) \ - }; \ -}) - -#define FIELD16(__mask) \ -({ \ - BUILD_BUG_ON(!(__mask) || \ - !is_valid_mask(__mask) || \ - (__mask) != (u16)(__mask));\ - (struct rt2x00_field16) { \ - __ffs(__mask), (__mask) \ - }; \ -}) - -#define FIELD32(__mask) \ -({ \ - BUILD_BUG_ON(!(__mask) || \ - !is_valid_mask(__mask) || \ - (__mask) != (u32)(__mask));\ - (struct rt2x00_field32) { \ - __ffs(__mask), (__mask) \ - }; \ -}) - -static inline void rt2x00_set_field32(u32 *reg, - const struct rt2x00_field32 field, const u32 value) -{ - *reg &= ~(field.bit_mask); - *reg |= (value << field.bit_offset) & field.bit_mask; -} - -static inline u32 rt2x00_get_field32(const u32 reg, - const struct rt2x00_field32 field) -{ - return (reg & field.bit_mask) >> field.bit_offset; -} - -static inline void rt2x00_set_field16(u16 *reg, - const struct rt2x00_field16 field, const u16 value) +static inline int is_rts_frame(u16 fc) { - *reg &= ~(field.bit_mask); - *reg |= (value << field.bit_offset) & field.bit_mask; + return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && + ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_RTS)); } -static inline u16 rt2x00_get_field16(const u16 reg, - const struct rt2x00_field16 field) +static inline int is_cts_frame(u16 fc) { - return (reg & field.bit_mask) >> field.bit_offset; + return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && + ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_CTS)); } -static inline void rt2x00_set_field8(u8 *reg, - const struct rt2x00_field8 field, const u8 value) +static inline int is_probe_resp(u16 fc) { - *reg &= ~(field.bit_mask); - *reg |= (value << field.bit_offset) & field.bit_mask; -} - -static inline u8 rt2x00_get_field8(const u8 reg, - const struct rt2x00_field8 field) -{ - return (reg & field.bit_mask) >> field.bit_offset; + return !!(((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) && + ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)); } /* @@ -328,8 +159,8 @@ struct rt2x00_chip { #define RT2460 0x0101 #define RT2560 0x0201 #define RT2570 0x1201 -#define RT2561 0x0301 -#define RT2561s 0x0302 +#define RT2561s 0x0301 /* Turbo */ +#define RT2561 0x0302 #define RT2661 0x0401 #define RT2571 0x1300 @@ -338,220 +169,17 @@ struct rt2x00_chip { }; /* - * data_desc - * Each data entry also contains a descriptor which is used by the - * device to determine what should be done with the packet and - * what the current status is. - * This structure is greatly simplified, but the descriptors - * are basically a list of little endian 32 bit values. - * Make the array by default 1 word big, this will allow us - * to use sizeof() correctly. - */ -struct data_desc { - __le32 word[1]; -}; - -/* - * data_entry_desc - * Summary of information that should be written into the - * descriptor for sending a TX frame. - */ -struct data_entry_desc { - /* - * PLCP values. - */ - u16 length_high; - u16 length_low; - u16 signal; - u16 service; - - int queue; - int ifs; -}; - -/* - * data_entry - * The data ring is a list of data entries. - * Each entry holds a reference to the descriptor - * and the data buffer. For TX rings the reference to the - * sk_buff of the packet being transmitted is also stored here. + * RF register values that belong to a particular channel. */ -struct data_entry { - /* - * Status flags - */ - unsigned long flags; -#define ENTRY_OWNER_NIC 1 -#define ENTRY_TXDONE 2 -#define ENTRY_TXD_RTS_FRAME 3 -#define ENTRY_TXD_OFDM_RATE 4 -#define ENTRY_TXD_MORE_FRAG 5 -#define ENTRY_TXD_REQ_TIMESTAMP 6 -#define ENTRY_TXD_REQ_ACK 7 - - /* - * Ring we belong to. - */ - struct data_ring *ring; - - /* - * sk_buff for the packet which is being transmitted - * in this entry (Only used with TX related rings). - */ - struct sk_buff *skb; - - /* - * Store a ieee80211_tx_status structure in each - * ring entry, this will optimize the txdone - * handler. - */ - struct ieee80211_tx_status tx_status; - - /* - * private pointer specific to driver. - */ - void *priv; - - /* - * Data address for this entry. - */ - void *data_addr; - dma_addr_t data_dma; -}; - -/* - * data_ring - * Data rings are used by the device to send and receive packets. - * The data_addr is the base address of the data memory. - * To determine at which point in the ring we are, - * have to use the rt2x00_ring_index_*() functions. - */ -struct data_ring { - /* - * Pointer to main rt2x00dev structure where this - * ring belongs to. - */ - struct rt2x00_dev *rt2x00dev; - - /* - * Base address for the device specific data entries. - */ - struct data_entry *entry; - - /* - * TX queue statistic info. - */ - struct ieee80211_tx_queue_stats_data stats; - - /* - * TX Queue parameters. - */ - struct ieee80211_tx_queue_params tx_params; - - /* - * Base address for data ring. - */ - dma_addr_t data_dma; - void *data_addr; - - /* - * Index variables. - */ - u16 index; - u16 index_done; - - /* - * Size of packet and descriptor in bytes. - */ - u16 data_size; - u16 desc_size; +struct rf_channel { + int channel; + u32 rf1; + u32 rf2; + u32 rf3; + u32 rf4; }; /* - * Handlers to determine the address of the current device specific - * data entry, where either index or index_done points to. - */ -static inline struct data_entry* rt2x00_get_data_entry( - struct data_ring *ring) -{ - return &ring->entry[ring->index]; -} - -static inline struct data_entry* rt2x00_get_data_entry_done( - struct data_ring *ring) -{ - return &ring->entry[ring->index_done]; -} - -/* - * Total ring memory - */ -static inline int rt2x00_get_ring_size(struct data_ring *ring) -{ - return ring->stats.limit * (ring->desc_size + ring->data_size); -} - -/* - * Ring index manipulation functions. - */ -static inline void rt2x00_ring_index_inc(struct data_ring *ring) -{ - ring->index++; - if (ring->index >= ring->stats.limit) - ring->index = 0; - ring->stats.len++; -} - -static inline void rt2x00_ring_index_done_inc(struct data_ring *ring) -{ - ring->index_done++; - if (ring->index_done >= ring->stats.limit) - ring->index_done = 0; - ring->stats.len--; - ring->stats.count++; -} - -static inline void rt2x00_ring_index_clear(struct data_ring *ring) -{ - ring->index = 0; - ring->index_done = 0; - ring->stats.len = 0; - ring->stats.count = 0; -} - -static inline int rt2x00_ring_empty(struct data_ring *ring) -{ - return ring->stats.len == 0; -} - -static inline int rt2x00_ring_full(struct data_ring *ring) -{ - return ring->stats.len == ring->stats.limit; -} - -static inline int rt2x00_ring_free(struct data_ring *ring) -{ - if (ring->index_done >= ring->index) - return ring->index_done - ring->index; - return ring->stats.len - (ring->index - ring->index_done); -} - -/* - * TX/RX Descriptor access functions. - */ -static inline void rt2x00_desc_read(struct data_desc *desc, - const u8 word, u32 *value) -{ - *value = le32_to_cpu(desc->word[word]); -} - -static inline void rt2x00_desc_write(struct data_desc *desc, - const u8 word, const u32 value) -{ - desc->word[word] = cpu_to_le32(value); -} - -/* * To optimize the quality of the link we need to store * the quality of received frames and periodically * optimize the link. @@ -565,33 +193,94 @@ struct link { u32 count; /* - * Misc statistics. + * Statistics required for Link tuning. * For the average RSSI value we use the "Walking average" approach. * When adding RSSI to the average value the following calculation * is needed: * - * avg_rssi = ((avg_rssi * 7) + rssi) / 8; + * avg_rssi = ((avg_rssi * 7) + rssi) / 8; * * The advantage of this approach is that we only need 1 variable * to store the average in (No need for a count and a total). * But more importantly, normal average values will over time - * move less and less towards newly added values. - * This means that with link tuning, the device can have a very - * good RSSI for a few minutes but when the device is moved away - * from the AP the average will not decrease fast enough to - * compensate. The walking average compensates this and will - * move towards the new values correctly. + * move less and less towards newly added values this results + * that with link tuning, the device can have a very good RSSI + * for a few minutes but when the device is moved away from the AP + * the average will not decrease fast enough to compensate. + * The walking average compensates this and will move towards + * the new values correctly allowing a effective link tuning. */ int avg_rssi; + int vgc_level; int false_cca; /* + * Statistics required for Signal quality calculation. + * For calculating the Signal quality we have to determine + * the total number of success and failed RX and TX frames. + * After that we also use the average RSSI value to help + * determining the signal quality. + * For the calculation we will use the following algorithm: + * + * rssi_percentage = (avg_rssi * 100) / rssi_offset + * rx_percentage = (rx_success * 100) / rx_total + * tx_percentage = (tx_success * 100) / tx_total + * avg_signal = ((WEIGHT_RSSI * avg_rssi) + + * (WEIGHT_TX * tx_percentage) + + * (WEIGHT_RX * rx_percentage)) / 100 + * + * This value should then be checked to not be greated then 100. + */ + int rx_percentage; + int rx_success; + int rx_failed; + int tx_percentage; + int tx_success; + int tx_failed; +#define WEIGHT_RSSI 20 +#define WEIGHT_RX 40 +#define WEIGHT_TX 40 + + /* * Work structure for scheduling periodic link tuning. */ struct delayed_work work; }; /* + * Clear all counters inside the link structure. + * This can be easiest achieved by memsetting everything + * except for the work structure at the end. + */ +static inline void rt2x00_clear_link(struct link *link) +{ + memset(link, 0x00, sizeof(*link) - sizeof(link->work)); + link->rx_percentage = 50; + link->tx_percentage = 50; +} + +/* + * Update the rssi using the walking average approach. + */ +static inline void rt2x00_update_link_rssi(struct link *link, int rssi) +{ + if (!link->avg_rssi) + link->avg_rssi = rssi; + else + link->avg_rssi = ((link->avg_rssi * 7) + rssi) / 8; +} + +/* + * When the avg_rssi is unset or no frames have been received), + * we need to return the default value which needs to be less + * than -80 so the device will select the maximum sensitivity. + */ +static inline int rt2x00_get_link_rssi(struct link *link) +{ + return (link->avg_rssi && link->rx_success) ? link->avg_rssi : -128; +} + +/* * Interface structure * Configuration details about the current interface. */ @@ -605,29 +294,25 @@ struct interface { /* * Current working type (IEEE80211_IF_TYPE_*). - * This excludes the type IEEE80211_IF_TYPE_MNTR - * since that is counted seperately in the monitor_count - * field. + * When set to INVALID_INTERFACE, no interface is configured. */ int type; +#define INVALID_INTERFACE IEEE80211_IF_TYPE_INVALID /* - * BBSID of the AP to associate with. + * MAC of the device. */ - u8 bssid[ETH_ALEN]; + u8 mac[ETH_ALEN]; /* - * Store the promisc mode for the current interface. - * monitor mode always forces promisc mode to be enabled, - * so we need to store the promisc mode seperately. + * BBSID of the AP to associate with. */ - short promisc; + u8 bssid[ETH_ALEN]; /* - * Monitor mode count, the number of interfaces - * in monitor mode that that have been added. + * Store the packet filter mode for the current interface. */ - short monitor_count; + unsigned int filter; }; static inline int is_interface_present(struct interface *intf) @@ -635,9 +320,9 @@ static inline int is_interface_present(struct interface *intf) return !!intf->id; } -static inline int is_monitor_present(struct interface *intf) +static inline int is_interface_type(struct interface *intf, int type) { - return !!intf->monitor_count; + return intf->type == type; } /* @@ -663,8 +348,29 @@ struct hw_mode_spec { /* * Device/chipset specific value. */ - const u32 *chan_val_a; - const u32 *chan_val_bg; + const struct rf_channel *channels; +}; + +/* + * Configuration structure wrapper around the + * mac80211 configuration structure. + * When mac80211 configures the driver, rt2x00lib + * can precalculate values which are equal for all + * rt2x00 drivers. Those values can be stored in here. + */ +struct rt2x00lib_conf { + struct ieee80211_conf *conf; + struct rf_channel rf; + + int phymode; + + int basic_rates; + int slot_time; + + short sifs; + short pifs; + short difs; + short eifs; }; /* @@ -679,59 +385,70 @@ struct rt2x00lib_ops { /* * Device init handlers. */ - int (*init_hw)(struct rt2x00_dev *rt2x00dev); - char* (*get_fw_name)(struct rt2x00_dev *rt2x00dev); - int (*load_firmware)(struct rt2x00_dev *rt2x00dev, void *data, - const size_t len); + int (*probe_hw) (struct rt2x00_dev *rt2x00dev); + char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev); + int (*load_firmware) (struct rt2x00_dev *rt2x00dev, void *data, + const size_t len); /* * Device initialization/deinitialization handlers. */ - int (*initialize)(struct rt2x00_dev *rt2x00dev); - void (*uninitialize)(struct rt2x00_dev *rt2x00dev); + int (*initialize) (struct rt2x00_dev *rt2x00dev); + void (*uninitialize) (struct rt2x00_dev *rt2x00dev); /* * Radio control handlers. */ - int (*set_device_state)(struct rt2x00_dev *rt2x00dev, - enum dev_state state); - int (*rfkill_poll)(struct rt2x00_dev *rt2x00dev); - void (*link_tuner)(struct rt2x00_dev *rt2x00dev); + int (*set_device_state) (struct rt2x00_dev *rt2x00dev, + enum dev_state state); + int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev); + void (*link_stats) (struct rt2x00_dev *rt2x00dev); + void (*reset_tuner) (struct rt2x00_dev *rt2x00dev); + void (*link_tuner) (struct rt2x00_dev *rt2x00dev); /* * TX control handlers */ - void (*write_tx_desc)(struct rt2x00_dev *rt2x00dev, - struct data_entry *entry, struct data_desc *txd, - struct data_entry_desc *desc, - struct ieee80211_hdr *ieee80211hdr, unsigned int length, - struct ieee80211_tx_control *control); - int (*write_tx_data)(struct rt2x00_dev *rt2x00dev, - struct data_ring *ring, struct sk_buff *skb, - struct ieee80211_tx_control *control); - void (*kick_tx_queue)(struct rt2x00_dev *rt2x00dev, int queue); + void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev, + struct data_desc *txd, + struct txdata_entry_desc *desc, + struct ieee80211_hdr *ieee80211hdr, + unsigned int length, + struct ieee80211_tx_control *control); + int (*write_tx_data) (struct rt2x00_dev *rt2x00dev, + struct data_ring *ring, struct sk_buff *skb, + struct ieee80211_tx_control *control); + int (*get_tx_data_len) (struct rt2x00_dev *rt2x00dev, + struct sk_buff *skb); + void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev, + unsigned int queue); /* * RX control handlers */ - int (*fill_rxdone)(struct data_entry *entry, - int *signal, int *rssi, int *ofdm); + void (*fill_rxdone) (struct data_entry *entry, + struct rxdata_entry_desc *desc); /* * Configuration handlers. */ - void (*config_type)(struct rt2x00_dev *rt2x00dev, const int type); - void (*config_phymode)(struct rt2x00_dev *rt2x00dev, const int phy); - void (*config_channel)(struct rt2x00_dev *rt2x00dev, const int value, - const int channel, const int txpower); - void (*config_mac_addr)(struct rt2x00_dev *rt2x00dev, u8 *mac); - void (*config_bssid)(struct rt2x00_dev *rt2x00dev, u8 *bssid); - void (*config_promisc)(struct rt2x00_dev *rt2x00dev, const int promisc); - void (*config_txpower)(struct rt2x00_dev *rt2x00dev, const int txpower); - void (*config_antenna)(struct rt2x00_dev *rt2x00dev, - const int antenna_tx, const int antenna_rx); - void (*config_duration)(struct rt2x00_dev *rt2x00dev, - const int short_slot_time, const int beacon_int); + void (*config_mac_addr) (struct rt2x00_dev *rt2x00dev, __le32 *mac); + void (*config_bssid) (struct rt2x00_dev *rt2x00dev, __le32 *bssid); + void (*config_type) (struct rt2x00_dev *rt2x00dev, const int type, + const int tsf_sync); + void (*config_preamble) (struct rt2x00_dev *rt2x00dev, + const int short_preamble, + const int ack_timeout, + const int ack_consume_time); + void (*config) (struct rt2x00_dev *rt2x00dev, const unsigned int flags, + struct rt2x00lib_conf *libconf); +#define CONFIG_UPDATE_PHYMODE ( 1 << 1 ) +#define CONFIG_UPDATE_CHANNEL ( 1 << 2 ) +#define CONFIG_UPDATE_TXPOWER ( 1 << 3 ) +#define CONFIG_UPDATE_ANTENNA ( 1 << 4 ) +#define CONFIG_UPDATE_SLOT_TIME ( 1 << 5 ) +#define CONFIG_UPDATE_BEACON_INT ( 1 << 6 ) +#define CONFIG_UPDATE_ALL 0xffff }; /* @@ -741,6 +458,8 @@ struct rt2x00_ops { const char *name; const unsigned int rxd_size; const unsigned int txd_size; + const unsigned int eeprom_size; + const unsigned int rf_size; const struct rt2x00lib_ops *lib; const struct ieee80211_ops *hw; #ifdef CONFIG_RT2X00_LIB_DEBUGFS @@ -749,6 +468,40 @@ struct rt2x00_ops { }; /* + * rt2x00 device flags + */ +enum rt2x00_flags { + /* + * Device state flags + */ + DEVICE_PRESENT, + DEVICE_REGISTERED_HW, + DEVICE_INITIALIZED, + DEVICE_STARTED, + DEVICE_STARTED_SUSPEND, + DEVICE_ENABLED_RADIO, + DEVICE_DISABLED_RADIO_HW, + + /* + * Driver features + */ + DRIVER_REQUIRE_FIRMWARE, + DRIVER_REQUIRE_BEACON_RING, + + /* + * Driver configuration + */ + CONFIG_SUPPORT_HW_BUTTON, + CONFIG_FRAME_TYPE, + CONFIG_RF_SEQUENCE, + CONFIG_EXTERNAL_LNA_A, + CONFIG_EXTERNAL_LNA_BG, + CONFIG_DOUBLE_ANTENNA, + CONFIG_DISABLE_LINK_TUNING, + CONFIG_SHORT_PREAMBLE, +}; + +/* * rt2x00 device structure. */ struct rt2x00_dev { @@ -784,34 +537,23 @@ struct rt2x00_dev { */ #ifdef CONFIG_RT2X00_LIB_RFKILL struct rfkill *rfkill; - struct delayed_work rfkill_work; + struct input_polled_dev *poll_dev; #endif /* CONFIG_RT2X00_LIB_RFKILL */ /* + * If enabled, the debugfs interface structures + * required for deregistration of debugfs. + */ +#ifdef CONFIG_RT2X00_LIB_DEBUGFS + const struct rt2x00debug_intf *debugfs_intf; +#endif /* CONFIG_RT2X00_LIB_DEBUGFS */ + + /* * Device flags. * In these flags the current status and some * of the device capabilities are stored. */ unsigned long flags; -#define DEVICE_ENABLED_RADIO 1 -#define DEVICE_ENABLED_RADIO_HW 2 -#define DEVICE_INITIALIZED 3 -#define DEVICE_INITIALIZED_HW 4 -#define FIRMWARE_REQUIRED 5 -#define FIRMWARE_LOADED 6 -#define FIRMWARE_FAILED 7 -#define INTERFACE_ENABLED 8 -#define INTERFACE_ENABLED_MONITOR 9 -#define INTERFACE_ENABLED_PROMISC 10 -#define DEVICE_SUPPORT_ATIM 11 -#define DEVICE_SUPPORT_HW_BUTTON 12 -#define CONFIG_FRAME_TYPE 13 -#define CONFIG_RF_SEQUENCE 14 -#define CONFIG_EXTERNAL_LNA 15 -#define CONFIG_EXTERNAL_LNA_A 16 -#define CONFIG_EXTERNAL_LNA_BG 17 -#define CONFIG_DOUBLE_ANTENNA 18 -#define CONFIG_DISABLE_LINK_TUNING 19 /* * Chipset identification. @@ -824,17 +566,12 @@ struct rt2x00_dev { struct hw_mode_spec spec; /* - * Base address of device registers (PCI devices only). + * Register pointers + * csr_addr: Base register address. (PCI) + * csr_cache: CSR cache for usb_control_msg. (USB) */ void __iomem *csr_addr; - - /* - * If enabled, the debugfs interface structures - * required for deregistration of debugfs. - */ -#ifdef CONFIG_RT2X00_LIB_DEBUGFS - const struct rt2x00debug_intf *debugfs_intf; -#endif /* CONFIG_RT2X00_LIB_DEBUGFS */ + void *csr_cache; /* * Interface configuration. @@ -853,13 +590,18 @@ struct rt2x00_dev { /* * Active RF register values. - * These are stored here for easier working - * with the rf registers. + * These are stored here so we don't need + * to read the rf registers and can directly + * use this value instead. + * This field should be accessed by using + * rt2x00_rf_read() and rt2x00_rf_write(). */ - u32 rf1; - u32 rf2; - u32 rf3; - u32 rf4; + u32 *rf; + + /* + * USB Max frame size (for rt2500usb & rt73usb). + */ + u16 usb_maxpacket; /* * Current TX power value. @@ -898,50 +640,44 @@ struct rt2x00_dev { struct ieee80211_rx_status rx_status; /* + * Scheduled work. + */ + struct work_struct beacon_work; + struct work_struct filter_work; + struct work_struct config_work; + + /* * Data ring arrays for RX, TX and Beacon. * The Beacon array also contains the Atim ring * if that is supported by the device. */ + int data_rings; struct data_ring *rx; struct data_ring *tx; struct data_ring *bcn; -}; - -static inline struct data_ring* rt2x00_get_ring( - struct rt2x00_dev *rt2x00dev, const unsigned int queue) -{ - int atim = test_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags); /* - * Check if the rings have been allocated. + * Firmware image. */ - if (!rt2x00dev->tx || !rt2x00dev->bcn) - return NULL; - - /* - * Check if we are requesting a reqular TX ring, - * or if we are requesting a Beacon or Atim ring. - * For Atim rings, we should check if it is supported. - */ - if (queue < rt2x00dev->hw->queues) - return &rt2x00dev->tx[queue]; - else if (queue == IEEE80211_TX_QUEUE_BEACON) - return &rt2x00dev->bcn[0]; - else if (queue == IEEE80211_TX_QUEUE_AFTER_BEACON && atim) - return &rt2x00dev->bcn[1]; - - return NULL; -} + const struct firmware *fw; +}; /* * For-each loop for the ring array. - * Since the all rings are allocated as a single array, - * we can start at the rx pointer and move forward to the tx rings. - * The 1 + Atim check will assure that the address directly after - * the ring array is obtained and the for-each loop exits correctly. + * All rings have been allocated as a single array, + * this means we can create a very simply loop macro + * that is capable of looping through all rings. + * ring_end(), txring_end() and ring_loop() are helper macro's which + * should not be used directly. Instead the following should be used: + * ring_for_each() - Loops through all rings (RX, TX, Beacon & Atim) + * txring_for_each() - Loops through TX data rings (TX only) + * txringall_for_each() - Loops through all TX rings (TX, Beacon & Atim) */ #define ring_end(__dev) \ - &(__dev)->bcn[1 + test_bit(DEVICE_SUPPORT_ATIM, &rt2x00dev->flags)] + &(__dev)->rx[(__dev)->data_rings] + +#define txring_end(__dev) \ + &(__dev)->tx[(__dev)->hw->queues] #define ring_loop(__entry, __start, __end) \ for ((__entry) = (__start); \ @@ -952,75 +688,58 @@ static inline struct data_ring* rt2x00_get_ring( ring_loop(__entry, (__dev)->rx, ring_end(__dev)) #define txring_for_each(__dev, __entry) \ - ring_loop(__entry, (__dev)->tx, (__dev)->bcn) + ring_loop(__entry, (__dev)->tx, txring_end(__dev)) #define txringall_for_each(__dev, __entry) \ ring_loop(__entry, (__dev)->tx, ring_end(__dev)) /* - * EEPROM access. - * The EEPROM is being accessed by word index. + * Generic RF access. + * The RF is being accessed by word index. */ -static inline void* rt2x00_eeprom_addr(const struct rt2x00_dev *rt2x00dev, - const u8 word) +static inline void rt2x00_rf_read(const struct rt2x00_dev *rt2x00dev, + const unsigned int word, u32 *data) { - return (void*)&rt2x00dev->eeprom[word]; + *data = rt2x00dev->rf[word]; } -static inline void rt2x00_eeprom_read(const struct rt2x00_dev *rt2x00dev, - const u8 word, u16 *data) +static inline void rt2x00_rf_write(const struct rt2x00_dev *rt2x00dev, + const unsigned int word, u32 data) { - *data = le16_to_cpu(rt2x00dev->eeprom[word]); -} - -static inline void rt2x00_eeprom_write(const struct rt2x00_dev *rt2x00dev, - const u8 word, u16 data) -{ - rt2x00dev->eeprom[word] = cpu_to_le16(data); + rt2x00dev->rf[word] = data; } /* - * Link tuning handlers + * Generic EEPROM access. + * The EEPROM is being accessed by word index. */ -static inline void rt2x00_start_link_tune(struct rt2x00_dev *rt2x00dev) +static inline void *rt2x00_eeprom_addr(const struct rt2x00_dev *rt2x00dev, + const unsigned int word) { - rt2x00dev->link.count = 0; - rt2x00dev->link.avg_rssi = 0; - rt2x00dev->link.false_cca = 0; - - queue_delayed_work(rt2x00dev->hw->workqueue, - &rt2x00dev->link.work, LINK_TUNE_INTERVAL); + return (void *)&rt2x00dev->eeprom[word]; } -static inline void rt2x00_stop_link_tune(struct rt2x00_dev *rt2x00dev) -{ - if (work_pending(&rt2x00dev->link.work.work)) - cancel_rearming_delayed_workqueue( - rt2x00dev->hw->workqueue, &rt2x00dev->link.work); -} - -static inline void rt2x00_update_link_rssi(struct link *link, int rssi) +static inline void rt2x00_eeprom_read(const struct rt2x00_dev *rt2x00dev, + const unsigned int word, u16 *data) { - if (!link->avg_rssi) - link->avg_rssi = rssi; - else - link->avg_rssi = ((link->avg_rssi * 7) + rssi) / 8; + *data = le16_to_cpu(rt2x00dev->eeprom[word]); } -static inline int rt2x00_get_link_rssi(struct link *link) +static inline void rt2x00_eeprom_write(const struct rt2x00_dev *rt2x00dev, + const unsigned int word, u16 data) { - return link->avg_rssi; + rt2x00dev->eeprom[word] = cpu_to_le16(data); } /* * Chipset handlers */ static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev, - const u16 rt, const u16 rf, const u32 rev) + const u16 rt, const u16 rf, const u32 rev) { INFO(rt2x00dev, - "Chipset detected - rt: %04x, rf: %04x, rev: %08x.\n", - rt, rf, rev); + "Chipset detected - rt: %04x, rf: %04x, rev: %08x.\n", + rt, rf, rev); rt2x00dev->chip.rt = rt; rt2x00dev->chip.rf = rf; @@ -1042,64 +761,12 @@ static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset) return chipset->rev; } -/* - * Device specific rate value. - * We will have to create the device specific rate value - * passed to the ieee80211 kernel. We need to make it a consist of - * multiple fields because we want to store more then 1 device specific - * values inside the value. - * 1 - rate, stored as 100 kbit/s. - * 2 - preamble, short_preamble enabled flag. - * 3 - MASK_RATE, which rates are enabled in this mode, this mask - * corresponds with the TX register format for the current device. - * 4 - plcp, 802.11b rates are device specific, - * 802.11g rates are set according to the ieee802.11a-1999 p.14. - * The bit to enable preamble is set in a seperate define. - */ -#define DEV_RATE FIELD32(0x000007ff) -#define DEV_PREAMBLE FIELD32(0x00000800) -#define DEV_RATEMASK FIELD32(0x00fff000) -#define DEV_PLCP FIELD32(0xff000000) - -/* - * Bitmask for MASK_RATE - */ -#define DEV_RATE_1MB 0x00000001 -#define DEV_RATE_2MB 0x00000002 -#define DEV_RATE_5_5MB 0x00000004 -#define DEV_RATE_11MB 0x00000008 -#define DEV_RATE_6MB 0x00000010 -#define DEV_RATE_9MB 0x00000020 -#define DEV_RATE_12MB 0x00000040 -#define DEV_RATE_18MB 0x00000080 -#define DEV_RATE_24MB 0x00000100 -#define DEV_RATE_36MB 0x00000200 -#define DEV_RATE_48MB 0x00000400 -#define DEV_RATE_54MB 0x00000800 - -/* - * Bitmask groups of bitrates - */ -#define DEV_BASIC_RATE \ - ( DEV_RATE_1MB | DEV_RATE_2MB | DEV_RATE_5_5MB | DEV_RATE_11MB | \ - DEV_RATE_6MB | DEV_RATE_12MB | DEV_RATE_24MB ) - -#define DEV_CCK_RATE \ - ( DEV_RATE_1MB | DEV_RATE_2MB | DEV_RATE_5_5MB | DEV_RATE_11MB ) - -#define DEV_OFDM_RATE \ - ( DEV_RATE_6MB | DEV_RATE_9MB | DEV_RATE_12MB | DEV_RATE_18MB | \ - DEV_RATE_24MB | DEV_RATE_36MB | DEV_RATE_48MB | DEV_RATE_54MB ) - -/* - * Macro's to set and get specific fields from the device specific val and val2 - * fields inside the ieee80211_rate entry. - */ -#define DEVICE_SET_RATE_FIELD(__value, __mask) \ - (int)( ((__value) << DEV_##__mask.bit_offset) & DEV_##__mask.bit_mask ) - -#define DEVICE_GET_RATE_FIELD(__value, __mask) \ - (int)( ((__value) & DEV_##__mask.bit_mask) >> DEV_##__mask.bit_offset ) +static inline u16 rt2x00_check_rev(const struct rt2x00_chip *chipset, + const u32 rev) +{ + return (((chipset->rev & 0xffff0) == rev) && + !!(chipset->rev & 0x0000f)); +} /* * Duration calculations @@ -1118,4 +785,61 @@ static inline u16 get_duration_res(const unsigned int size, const u8 rate) return ((size * 8 * 10) % rate); } +/* + * Library functions. + */ +struct data_ring *rt2x00lib_get_ring(struct rt2x00_dev *rt2x00dev, + const unsigned int queue); + +/* + * Interrupt context handlers. + */ +void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev); +void rt2x00lib_txdone(struct data_entry *entry, + const int status, const int retry); +void rt2x00lib_rxdone(struct data_entry *entry, struct sk_buff *skb, + struct rxdata_entry_desc *desc); + +/* + * TX descriptor initializer + */ +void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev, + struct data_desc *txd, + struct ieee80211_hdr *ieee80211hdr, + unsigned int length, + struct ieee80211_tx_control *control); + +/* + * mac80211 handlers. + */ +int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb, + struct ieee80211_tx_control *control); +int rt2x00mac_start(struct ieee80211_hw *hw); +void rt2x00mac_stop(struct ieee80211_hw *hw); +int rt2x00mac_add_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf); +void rt2x00mac_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf); +int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf); +int rt2x00mac_config_interface(struct ieee80211_hw *hw, int if_id, + struct ieee80211_if_conf *conf); +int rt2x00mac_get_stats(struct ieee80211_hw *hw, + struct ieee80211_low_level_stats *stats); +int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw, + struct ieee80211_tx_queue_stats *stats); +void rt2x00mac_erp_ie_changed(struct ieee80211_hw *hw, u8 changes, + int cts_protection, int preamble); +int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue, + const struct ieee80211_tx_queue_params *params); + +/* + * Driver allocation handlers. + */ +int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev); +void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev); +#ifdef CONFIG_PM +int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state); +int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev); +#endif /* CONFIG_PM */ + #endif /* RT2X00_H */ |