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Drivers that load firmware from their probe routine have problems with the latest versions of udev as they get timeouts while waiting for user space to start. The problem is fixed by using request_firmware_nowait() and delaying the start of mac80211 until the firmware is loaded. To prevent the possibility of the driver being unloaded while the firmware loading callback is still active, a completion queue entry is used. Also, to simplify the firmware loading procedure, this patch removes the old, unofficial and confusing fallback firmware names. However, they are still supported! So any user - who is still using them - is hereby advised to link/rename their old firmware filenames: isl3890usb to isl3886usb isl3887usb_bare to isl3887usb Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
152 lines
3.7 KiB
C
152 lines
3.7 KiB
C
#ifndef P54USB_H
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#define P54USB_H
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/*
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* Defines for USB based mac80211 Prism54 driver
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*
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* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
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*
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* Based on the islsm (softmac prism54) driver, which is:
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* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/* for isl3886 register definitions used on ver 1 devices */
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#include "p54pci.h"
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#include "net2280.h"
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/* pci */
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#define NET2280_BASE 0x10000000
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#define NET2280_BASE2 0x20000000
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/* gpio */
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#define P54U_BRG_POWER_UP (1 << GPIO0_DATA)
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#define P54U_BRG_POWER_DOWN (1 << GPIO1_DATA)
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/* devinit */
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#define NET2280_CLK_4Mhz (15 << LOCAL_CLOCK_FREQUENCY)
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#define NET2280_CLK_30Mhz (2 << LOCAL_CLOCK_FREQUENCY)
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#define NET2280_CLK_60Mhz (1 << LOCAL_CLOCK_FREQUENCY)
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#define NET2280_CLK_STOP (0 << LOCAL_CLOCK_FREQUENCY)
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#define NET2280_PCI_ENABLE (1 << PCI_ENABLE)
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#define NET2280_PCI_SOFT_RESET (1 << PCI_SOFT_RESET)
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/* endpoints */
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#define NET2280_CLEAR_NAK_OUT_PACKETS_MODE (1 << CLEAR_NAK_OUT_PACKETS_MODE)
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#define NET2280_FIFO_FLUSH (1 << FIFO_FLUSH)
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/* irq */
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#define NET2280_USB_INTERRUPT_ENABLE (1 << USB_INTERRUPT_ENABLE)
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#define NET2280_PCI_INTA_INTERRUPT (1 << PCI_INTA_INTERRUPT)
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#define NET2280_PCI_INTA_INTERRUPT_ENABLE (1 << PCI_INTA_INTERRUPT_ENABLE)
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/* registers */
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#define NET2280_DEVINIT 0x00
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#define NET2280_USBIRQENB1 0x24
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#define NET2280_IRQSTAT1 0x2c
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#define NET2280_FIFOCTL 0x38
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#define NET2280_GPIOCTL 0x50
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#define NET2280_RELNUM 0x88
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#define NET2280_EPA_RSP 0x324
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#define NET2280_EPA_STAT 0x32c
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#define NET2280_EPB_STAT 0x34c
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#define NET2280_EPC_RSP 0x364
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#define NET2280_EPC_STAT 0x36c
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#define NET2280_EPD_STAT 0x38c
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#define NET2280_EPA_CFG 0x320
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#define NET2280_EPB_CFG 0x340
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#define NET2280_EPC_CFG 0x360
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#define NET2280_EPD_CFG 0x380
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#define NET2280_EPE_CFG 0x3A0
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#define NET2280_EPF_CFG 0x3C0
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#define P54U_DEV_BASE 0x40000000
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struct net2280_tx_hdr {
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__le32 device_addr;
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__le16 len;
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__le16 follower; /* ? */
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u8 padding[8];
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} __packed;
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struct lm87_tx_hdr {
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__le32 device_addr;
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__le32 chksum;
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} __packed;
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/* Some flags for the isl hardware registers controlling DMA inside the
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* chip */
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#define ISL38XX_DMA_STATUS_DONE 0x00000001
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#define ISL38XX_DMA_STATUS_READY 0x00000002
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#define NET2280_EPA_FIFO_PCI_ADDR 0x20000000
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#define ISL38XX_DMA_MASTER_CONTROL_TRIGGER 0x00000004
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enum net2280_op_type {
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NET2280_BRG_U32 = 0x001F,
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NET2280_BRG_CFG_U32 = 0x000F,
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NET2280_BRG_CFG_U16 = 0x0003,
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NET2280_DEV_U32 = 0x080F,
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NET2280_DEV_CFG_U32 = 0x088F,
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NET2280_DEV_CFG_U16 = 0x0883
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};
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#define P54U_FW_BLOCK 2048
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#define X2_SIGNATURE "x2 "
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#define X2_SIGNATURE_SIZE 4
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struct x2_header {
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u8 signature[X2_SIGNATURE_SIZE];
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__le32 fw_load_addr;
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__le32 fw_length;
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__le32 crc;
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} __packed;
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/* pipes 3 and 4 are not used by the driver */
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#define P54U_PIPE_NUMBER 9
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enum p54u_pipe_addr {
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P54U_PIPE_DATA = 0x01,
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P54U_PIPE_MGMT = 0x02,
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P54U_PIPE_3 = 0x03,
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P54U_PIPE_4 = 0x04,
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P54U_PIPE_BRG = 0x0d,
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P54U_PIPE_DEV = 0x0e,
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P54U_PIPE_INT = 0x0f
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};
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struct p54u_rx_info {
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struct urb *urb;
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struct ieee80211_hw *dev;
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};
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enum p54u_hw_type {
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P54U_INVALID_HW,
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P54U_NET2280,
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P54U_3887,
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/* keep last */
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__NUM_P54U_HWTYPES,
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};
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struct p54u_priv {
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struct p54_common common;
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struct usb_device *udev;
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struct usb_interface *intf;
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int (*upload_fw)(struct ieee80211_hw *dev);
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enum p54u_hw_type hw_type;
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spinlock_t lock;
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struct sk_buff_head rx_queue;
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struct usb_anchor submitted;
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const struct firmware *fw;
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/* asynchronous firmware callback */
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struct completion fw_wait_load;
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};
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#endif /* P54USB_H */
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