c11d8f89d3
This patch simplifies URB management for transmission, by removing the 'FLUSH' variable (which is not needed, since we can determine if the URB has been killed by looking at the URB status), and also handling the STOP case properly. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/*
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* Copyright (c) 2010 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef HTC_USB_H
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#define HTC_USB_H
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#define AR9271_FIRMWARE 0x501000
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#define AR9271_FIRMWARE_TEXT 0x903000
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#define FIRMWARE_DOWNLOAD 0x30
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#define FIRMWARE_DOWNLOAD_COMP 0x31
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#define ATH_USB_RX_STREAM_MODE_TAG 0x4e00
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#define ATH_USB_TX_STREAM_MODE_TAG 0x697e
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/* FIXME: Verify these numbers (with Windows) */
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#define MAX_TX_URB_NUM 8
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#define MAX_TX_BUF_NUM 1024
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#define MAX_TX_BUF_SIZE 32768
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#define MAX_TX_AGGR_NUM 20
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#define MAX_RX_URB_NUM 8
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#define MAX_RX_BUF_SIZE 16384
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#define MAX_PKT_NUM_IN_TRANSFER 10
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#define MAX_REG_OUT_URB_NUM 1
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#define MAX_REG_OUT_BUF_NUM 8
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#define MAX_REG_IN_BUF_SIZE 64
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/* USB Endpoint definition */
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#define USB_WLAN_TX_PIPE 1
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#define USB_WLAN_RX_PIPE 2
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#define USB_REG_IN_PIPE 3
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#define USB_REG_OUT_PIPE 4
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#define HIF_USB_MAX_RXPIPES 2
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#define HIF_USB_MAX_TXPIPES 4
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struct tx_buf {
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u8 *buf;
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u16 len;
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u16 offset;
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struct urb *urb;
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struct sk_buff_head skb_queue;
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struct hif_device_usb *hif_dev;
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struct list_head list;
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};
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#define HIF_USB_TX_STOP BIT(0)
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struct hif_usb_tx {
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u8 flags;
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u8 tx_buf_cnt;
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u16 tx_skb_cnt;
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struct sk_buff_head tx_skb_queue;
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struct list_head tx_buf;
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struct list_head tx_pending;
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spinlock_t tx_lock;
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};
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struct cmd_buf {
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struct sk_buff *skb;
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struct hif_device_usb *hif_dev;
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};
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#define HIF_USB_START BIT(0)
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struct hif_device_usb {
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u16 device_id;
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struct usb_device *udev;
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struct usb_interface *interface;
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const struct firmware *firmware;
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struct htc_target *htc_handle;
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struct hif_usb_tx tx;
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struct urb *reg_in_urb;
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struct usb_anchor regout_submitted;
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struct usb_anchor rx_submitted;
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struct sk_buff *remain_skb;
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int rx_remain_len;
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int rx_pkt_len;
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int rx_transfer_len;
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int rx_pad_len;
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spinlock_t rx_lock;
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u8 flags; /* HIF_USB_* */
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};
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int ath9k_hif_usb_init(void);
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void ath9k_hif_usb_exit(void);
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#endif /* HTC_USB_H */
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