at76c50x-usb: add driver
This is a driver for usb devices based on at76c50x chipset. This is
a mac80211 port of the original at76_usb driver.
Signed-off-by: Kalle Valo <kalle.valo@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/at76c50x-usb.h b/drivers/net/wireless/at76c50x-usb.h
new file mode 100644
index 0000000..1ec5ccf
--- /dev/null
+++ b/drivers/net/wireless/at76c50x-usb.h
@@ -0,0 +1,463 @@
+/*
+ * Copyright (c) 2002,2003 Oliver Kurth
+ * (c) 2003,2004 Joerg Albert <joerg.albert@gmx.de>
+ * (c) 2007 Guido Guenther <agx@sigxcpu.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This driver was based on information from the Sourceforge driver
+ * released and maintained by Atmel:
+ *
+ * http://sourceforge.net/projects/atmelwlandriver/
+ *
+ * Although the code was completely re-written,
+ * it would have been impossible without Atmel's decision to
+ * release an Open Source driver (unfortunately the firmware was
+ * kept binary only). Thanks for that decision to Atmel!
+ */
+
+#ifndef _AT76_USB_H
+#define _AT76_USB_H
+
+/* Board types */
+enum board_type {
+ BOARD_503_ISL3861 = 1,
+ BOARD_503_ISL3863 = 2,
+ BOARD_503 = 3,
+ BOARD_503_ACC = 4,
+ BOARD_505 = 5,
+ BOARD_505_2958 = 6,
+ BOARD_505A = 7,
+ BOARD_505AMX = 8
+};
+
+#define CMD_STATUS_IDLE 0x00
+#define CMD_STATUS_COMPLETE 0x01
+#define CMD_STATUS_UNKNOWN 0x02
+#define CMD_STATUS_INVALID_PARAMETER 0x03
+#define CMD_STATUS_FUNCTION_NOT_SUPPORTED 0x04
+#define CMD_STATUS_TIME_OUT 0x07
+#define CMD_STATUS_IN_PROGRESS 0x08
+#define CMD_STATUS_HOST_FAILURE 0xff
+#define CMD_STATUS_SCAN_FAILED 0xf0
+
+/* answers to get op mode */
+#define OPMODE_NONE 0x00
+#define OPMODE_NORMAL_NIC_WITH_FLASH 0x01
+#define OPMODE_HW_CONFIG_MODE 0x02
+#define OPMODE_DFU_MODE_WITH_FLASH 0x03
+#define OPMODE_NORMAL_NIC_WITHOUT_FLASH 0x04
+
+#define CMD_SET_MIB 0x01
+#define CMD_GET_MIB 0x02
+#define CMD_SCAN 0x03
+#define CMD_JOIN 0x04
+#define CMD_START_IBSS 0x05
+#define CMD_RADIO_ON 0x06
+#define CMD_RADIO_OFF 0x07
+#define CMD_STARTUP 0x0B
+
+#define MIB_LOCAL 0x01
+#define MIB_MAC_ADDR 0x02
+#define MIB_MAC 0x03
+#define MIB_MAC_MGMT 0x05
+#define MIB_MAC_WEP 0x06
+#define MIB_PHY 0x07
+#define MIB_FW_VERSION 0x08
+#define MIB_MDOMAIN 0x09
+
+#define ADHOC_MODE 1
+#define INFRASTRUCTURE_MODE 2
+
+/* values for struct mib_local, field preamble_type */
+#define PREAMBLE_TYPE_LONG 0
+#define PREAMBLE_TYPE_SHORT 1
+#define PREAMBLE_TYPE_AUTO 2
+
+/* values for tx_rate */
+#define TX_RATE_1MBIT 0
+#define TX_RATE_2MBIT 1
+#define TX_RATE_5_5MBIT 2
+#define TX_RATE_11MBIT 3
+#define TX_RATE_AUTO 4
+
+/* power management modes */
+#define AT76_PM_OFF 1
+#define AT76_PM_ON 2
+#define AT76_PM_SMART 3
+
+struct hwcfg_r505 {
+ u8 cr39_values[14];
+ u8 reserved1[14];
+ u8 bb_cr[14];
+ u8 pidvid[4];
+ u8 mac_addr[ETH_ALEN];
+ u8 regulatory_domain;
+ u8 reserved2[14];
+ u8 cr15_values[14];
+ u8 reserved3[3];
+} __attribute__((packed));
+
+struct hwcfg_rfmd {
+ u8 cr20_values[14];
+ u8 cr21_values[14];
+ u8 bb_cr[14];
+ u8 pidvid[4];
+ u8 mac_addr[ETH_ALEN];
+ u8 regulatory_domain;
+ u8 low_power_values[14];
+ u8 normal_power_values[14];
+ u8 reserved1[3];
+} __attribute__((packed));
+
+struct hwcfg_intersil {
+ u8 mac_addr[ETH_ALEN];
+ u8 cr31_values[14];
+ u8 cr58_values[14];
+ u8 pidvid[4];
+ u8 regulatory_domain;
+ u8 reserved[1];
+} __attribute__((packed));
+
+union at76_hwcfg {
+ struct hwcfg_intersil i;
+ struct hwcfg_rfmd r3;
+ struct hwcfg_r505 r5;
+};
+
+#define WEP_SMALL_KEY_LEN (40 / 8)
+#define WEP_LARGE_KEY_LEN (104 / 8)
+#define WEP_KEYS (4)
+
+struct at76_card_config {
+ u8 exclude_unencrypted;
+ u8 promiscuous_mode;
+ u8 short_retry_limit;
+ u8 encryption_type;
+ __le16 rts_threshold;
+ __le16 fragmentation_threshold; /* 256..2346 */
+ u8 basic_rate_set[4];
+ u8 auto_rate_fallback; /* 0,1 */
+ u8 channel;
+ u8 privacy_invoked;
+ u8 wep_default_key_id; /* 0..3 */
+ u8 current_ssid[32];
+ u8 wep_default_key_value[4][WEP_LARGE_KEY_LEN];
+ u8 ssid_len;
+ u8 short_preamble;
+ __le16 beacon_period;
+} __attribute__((packed));
+
+struct at76_command {
+ u8 cmd;
+ u8 reserved;
+ __le16 size;
+ u8 data[0];
+} __attribute__((packed));
+
+/* Length of Atmel-specific Rx header before 802.11 frame */
+#define AT76_RX_HDRLEN offsetof(struct at76_rx_buffer, packet)
+
+struct at76_rx_buffer {
+ __le16 wlength;
+ u8 rx_rate;
+ u8 newbss;
+ u8 fragmentation;
+ u8 rssi;
+ u8 link_quality;
+ u8 noise_level;
+ __le32 rx_time;
+ u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
+} __attribute__((packed));
+
+/* Length of Atmel-specific Tx header before 802.11 frame */
+#define AT76_TX_HDRLEN offsetof(struct at76_tx_buffer, packet)
+
+struct at76_tx_buffer {
+ __le16 wlength;
+ u8 tx_rate;
+ u8 padding;
+ u8 reserved[4];
+ u8 packet[IEEE80211_MAX_FRAG_THRESHOLD];
+} __attribute__((packed));
+
+/* defines for scan_type below */
+#define SCAN_TYPE_ACTIVE 0
+#define SCAN_TYPE_PASSIVE 1
+
+struct at76_req_scan {
+ u8 bssid[ETH_ALEN];
+ u8 essid[32];
+ u8 scan_type;
+ u8 channel;
+ __le16 probe_delay;
+ __le16 min_channel_time;
+ __le16 max_channel_time;
+ u8 essid_size;
+ u8 international_scan;
+} __attribute__((packed));
+
+struct at76_req_ibss {
+ u8 bssid[ETH_ALEN];
+ u8 essid[32];
+ u8 bss_type;
+ u8 channel;
+ u8 essid_size;
+ u8 reserved[3];
+} __attribute__((packed));
+
+struct at76_req_join {
+ u8 bssid[ETH_ALEN];
+ u8 essid[32];
+ u8 bss_type;
+ u8 channel;
+ __le16 timeout;
+ u8 essid_size;
+ u8 reserved;
+} __attribute__((packed));
+
+struct set_mib_buffer {
+ u8 type;
+ u8 size;
+ u8 index;
+ u8 reserved;
+ union {
+ u8 byte;
+ __le16 word;
+ u8 addr[ETH_ALEN];
+ } data;
+} __attribute__((packed));
+
+struct mib_local {
+ u16 reserved0;
+ u8 beacon_enable;
+ u8 txautorate_fallback;
+ u8 reserved1;
+ u8 ssid_size;
+ u8 promiscuous_mode;
+ u16 reserved2;
+ u8 preamble_type;
+ u16 reserved3;
+} __attribute__((packed));
+
+struct mib_mac_addr {
+ u8 mac_addr[ETH_ALEN];
+ u8 res[2]; /* ??? */
+ u8 group_addr[4][ETH_ALEN];
+ u8 group_addr_status[4];
+} __attribute__((packed));
+
+struct mib_mac {
+ __le32 max_tx_msdu_lifetime;
+ __le32 max_rx_lifetime;
+ __le16 frag_threshold;
+ __le16 rts_threshold;
+ __le16 cwmin;
+ __le16 cwmax;
+ u8 short_retry_time;
+ u8 long_retry_time;
+ u8 scan_type; /* active or passive */
+ u8 scan_channel;
+ __le16 probe_delay; /* delay before ProbeReq in active scan, RO */
+ __le16 min_channel_time;
+ __le16 max_channel_time;
+ __le16 listen_interval;
+ u8 desired_ssid[32];
+ u8 desired_bssid[ETH_ALEN];
+ u8 desired_bsstype; /* ad-hoc or infrastructure */
+ u8 reserved2;
+} __attribute__((packed));
+
+struct mib_mac_mgmt {
+ __le16 beacon_period;
+ __le16 CFP_max_duration;
+ __le16 medium_occupancy_limit;
+ __le16 station_id; /* assoc id */
+ __le16 ATIM_window;
+ u8 CFP_mode;
+ u8 privacy_option_implemented;
+ u8 DTIM_period;
+ u8 CFP_period;
+ u8 current_bssid[ETH_ALEN];
+ u8 current_essid[32];
+ u8 current_bss_type;
+ u8 power_mgmt_mode;
+ /* rfmd and 505 */
+ u8 ibss_change;
+ u8 res;
+ u8 multi_domain_capability_implemented;
+ u8 multi_domain_capability_enabled;
+ u8 country_string[3];
+ u8 reserved[3];
+} __attribute__((packed));
+
+struct mib_mac_wep {
+ u8 privacy_invoked; /* 0 disable encr., 1 enable encr */
+ u8 wep_default_key_id;
+ u8 wep_key_mapping_len;
+ u8 exclude_unencrypted;
+ __le32 wep_icv_error_count;
+ __le32 wep_excluded_count;
+ u8 wep_default_keyvalue[WEP_KEYS][WEP_LARGE_KEY_LEN];
+ u8 encryption_level; /* 1 for 40bit, 2 for 104bit encryption */
+} __attribute__((packed));
+
+struct mib_phy {
+ __le32 ed_threshold;
+
+ __le16 slot_time;
+ __le16 sifs_time;
+ __le16 preamble_length;
+ __le16 plcp_header_length;
+ __le16 mpdu_max_length;
+ __le16 cca_mode_supported;
+
+ u8 operation_rate_set[4];
+ u8 channel_id;
+ u8 current_cca_mode;
+ u8 phy_type;
+ u8 current_reg_domain;
+} __attribute__((packed));
+
+struct mib_fw_version {
+ u8 major;
+ u8 minor;
+ u8 patch;
+ u8 build;
+} __attribute__((packed));
+
+struct mib_mdomain {
+ u8 tx_powerlevel[14];
+ u8 channel_list[14]; /* 0 for invalid channels */
+} __attribute__((packed));
+
+struct at76_fw_header {
+ __le32 crc; /* CRC32 of the whole image */
+ __le32 board_type; /* firmware compatibility code */
+ u8 build; /* firmware build number */
+ u8 patch; /* firmware patch level */
+ u8 minor; /* firmware minor version */
+ u8 major; /* firmware major version */
+ __le32 str_offset; /* offset of the copyright string */
+ __le32 int_fw_offset; /* internal firmware image offset */
+ __le32 int_fw_len; /* internal firmware image length */
+ __le32 ext_fw_offset; /* external firmware image offset */
+ __le32 ext_fw_len; /* external firmware image length */
+} __attribute__((packed));
+
+/* a description of a regulatory domain and the allowed channels */
+struct reg_domain {
+ u16 code;
+ char const *name;
+ u32 channel_map; /* if bit N is set, channel (N+1) is allowed */
+};
+
+/* Data for one loaded firmware file */
+struct fwentry {
+ const char *const fwname;
+ const struct firmware *fw;
+ int extfw_size;
+ int intfw_size;
+ /* pointer to loaded firmware, no need to free */
+ u8 *extfw; /* external firmware, extfw_size bytes long */
+ u8 *intfw; /* internal firmware, intfw_size bytes long */
+ enum board_type board_type; /* board type */
+ struct mib_fw_version fw_version;
+ int loaded; /* Loaded and parsed successfully */
+};
+
+struct at76_priv {
+ struct usb_device *udev; /* USB device pointer */
+
+ struct sk_buff *rx_skb; /* skbuff for receiving data */
+ struct sk_buff *tx_skb; /* skbuff for transmitting data */
+ void *bulk_out_buffer; /* buffer for sending data */
+
+ struct urb *tx_urb; /* URB for sending data */
+ struct urb *rx_urb; /* URB for receiving data */
+
+ unsigned int tx_pipe; /* bulk out pipe */
+ unsigned int rx_pipe; /* bulk in pipe */
+
+ struct mutex mtx; /* locks this structure */
+
+ /* work queues */
+ struct work_struct work_set_promisc;
+ struct work_struct work_submit_rx;
+ struct delayed_work dwork_hw_scan;
+
+ struct tasklet_struct rx_tasklet;
+
+ /* the WEP stuff */
+ int wep_enabled; /* 1 if WEP is enabled */
+ int wep_key_id; /* key id to be used */
+ u8 wep_keys[WEP_KEYS][WEP_LARGE_KEY_LEN]; /* WEP keys */
+ u8 wep_keys_len[WEP_KEYS]; /* length of WEP keys */
+
+ int channel;
+ int iw_mode;
+ u8 bssid[ETH_ALEN];
+ u8 essid[IW_ESSID_MAX_SIZE];
+ int essid_size;
+ int radio_on;
+ int promisc;
+
+ int preamble_type; /* 0 - long, 1 - short, 2 - auto */
+ int auth_mode; /* authentication type: 0 open, 1 shared key */
+ int txrate; /* 0,1,2,3 = 1,2,5.5,11 Mbps, 4 is auto */
+ int frag_threshold; /* threshold for fragmentation of tx packets */
+ int rts_threshold; /* threshold for RTS mechanism */
+ int short_retry_limit;
+
+ int scan_min_time; /* scan min channel time */
+ int scan_max_time; /* scan max channel time */
+ int scan_mode; /* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */
+ int scan_need_any; /* if set, need to scan for any ESSID */
+
+ u16 assoc_id; /* current association ID, if associated */
+
+ u8 pm_mode; /* power management mode */
+ u32 pm_period; /* power management period in microseconds */
+
+ struct reg_domain const *domain; /* reg domain description */
+
+ /* These fields contain HW config provided by the device (not all of
+ * these fields are used by all board types) */
+ u8 mac_addr[ETH_ALEN];
+ u8 regulatory_domain;
+
+ struct at76_card_config card_config;
+
+ enum board_type board_type;
+ struct mib_fw_version fw_version;
+
+ unsigned int device_unplugged:1;
+ unsigned int netdev_registered:1;
+ struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */
+
+ int beacon_period; /* period of mgmt beacons, Kus */
+
+ struct ieee80211_hw *hw;
+ int mac80211_registered;
+};
+
+#define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS
+
+#define SCAN_POLL_INTERVAL (HZ / 4)
+
+#define CMD_COMPLETION_TIMEOUT (5 * HZ)
+
+#define DEF_RTS_THRESHOLD 1536
+#define DEF_FRAG_THRESHOLD 1536
+#define DEF_SHORT_RETRY_LIMIT 8
+#define DEF_CHANNEL 10
+#define DEF_SCAN_MIN_TIME 10
+#define DEF_SCAN_MAX_TIME 120
+
+/* the max padding size for tx in bytes (see calc_padding) */
+#define MAX_PADDING_SIZE 53
+
+#endif /* _AT76_USB_H */