drivers/net/wireless/intersil/p54/p54usb.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #ifndef P54USB_H
   3 #define P54USB_H
   4
   5 /*
   6  * Defines for USB based mac80211 Prism54 driver
   7  *
   8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   9  *
  10  * Based on the islsm (softmac prism54) driver, which is:
  11  * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
  12  */
  13
  14 /* for isl3886 register definitions used on ver 1 devices */
  15 #include "p54pci.h"
  16 #include <linux/usb/net2280.h>
  17
  18 /* pci */
  19 #define NET2280_BASE            0x10000000
  20 #define NET2280_BASE2           0x20000000
  21
  22 /* gpio */
  23 #define P54U_BRG_POWER_UP       (1 << GPIO0_DATA)
  24 #define P54U_BRG_POWER_DOWN     (1 << GPIO1_DATA)
  25
  26 /* devinit */
  27 #define NET2280_CLK_4Mhz        (15 << LOCAL_CLOCK_FREQUENCY)
  28 #define NET2280_CLK_30Mhz       (2 << LOCAL_CLOCK_FREQUENCY)
  29 #define NET2280_CLK_60Mhz       (1 << LOCAL_CLOCK_FREQUENCY)
  30 #define NET2280_CLK_STOP        (0 << LOCAL_CLOCK_FREQUENCY)
  31 #define NET2280_PCI_ENABLE      (1 << PCI_ENABLE)
  32 #define NET2280_PCI_SOFT_RESET  (1 << PCI_SOFT_RESET)
  33
  34 /* endpoints */
  35 #define NET2280_CLEAR_NAK_OUT_PACKETS_MODE      (1 << CLEAR_NAK_OUT_PACKETS_MODE)
  36 #define NET2280_FIFO_FLUSH                      (1 << FIFO_FLUSH)
  37
  38 /* irq */
  39 #define NET2280_USB_INTERRUPT_ENABLE            (1 << USB_INTERRUPT_ENABLE)
  40 #define NET2280_PCI_INTA_INTERRUPT              (1 << PCI_INTA_INTERRUPT)
  41 #define NET2280_PCI_INTA_INTERRUPT_ENABLE       (1 << PCI_INTA_INTERRUPT_ENABLE)
  42
  43 /* registers */
  44 #define NET2280_DEVINIT         0x00
  45 #define NET2280_USBIRQENB1      0x24
  46 #define NET2280_IRQSTAT1        0x2c
  47 #define NET2280_FIFOCTL         0x38
  48 #define NET2280_GPIOCTL         0x50
  49 #define NET2280_RELNUM          0x88
  50 #define NET2280_EPA_RSP         0x324
  51 #define NET2280_EPA_STAT        0x32c
  52 #define NET2280_EPB_STAT        0x34c
  53 #define NET2280_EPC_RSP         0x364
  54 #define NET2280_EPC_STAT        0x36c
  55 #define NET2280_EPD_STAT        0x38c
  56
  57 #define NET2280_EPA_CFG     0x320
  58 #define NET2280_EPB_CFG     0x340
  59 #define NET2280_EPC_CFG     0x360
  60 #define NET2280_EPD_CFG     0x380
  61 #define NET2280_EPE_CFG     0x3A0
  62 #define NET2280_EPF_CFG     0x3C0
  63 #define P54U_DEV_BASE 0x40000000
  64
  65 struct net2280_tx_hdr {
  66         __le32 device_addr;
  67         __le16 len;
  68         __le16 follower;        /* ? */
  69         u8 padding[8];
  70 } __packed;
  71
  72 struct lm87_tx_hdr {
  73         __le32 device_addr;
  74         __le32 chksum;
  75 } __packed;
  76
  77 /* Some flags for the isl hardware registers controlling DMA inside the
  78  * chip */
  79 #define ISL38XX_DMA_STATUS_DONE                 0x00000001
  80 #define ISL38XX_DMA_STATUS_READY                0x00000002
  81 #define NET2280_EPA_FIFO_PCI_ADDR               0x20000000
  82 #define ISL38XX_DMA_MASTER_CONTROL_TRIGGER      0x00000004
  83
  84 enum net2280_op_type {
  85         NET2280_BRG_U32         = 0x001F,
  86         NET2280_BRG_CFG_U32     = 0x000F,
  87         NET2280_BRG_CFG_U16     = 0x0003,
  88         NET2280_DEV_U32         = 0x080F,
  89         NET2280_DEV_CFG_U32     = 0x088F,
  90         NET2280_DEV_CFG_U16     = 0x0883
  91 };
  92
  93 struct net2280_reg_write {
  94         __le16 port;
  95         __le32 addr;
  96         __le32 val;
  97 } __packed;
  98
  99 struct net2280_reg_read {
 100         __le16 port;
 101         __le32 addr;
 102 } __packed;
 103
 104 #define P54U_FW_BLOCK 2048
 105
 106 #define X2_SIGNATURE "x2  "
 107 #define X2_SIGNATURE_SIZE 4
 108
 109 struct x2_header {
 110         u8 signature[X2_SIGNATURE_SIZE];
 111         __le32 fw_load_addr;
 112         __le32 fw_length;
 113         __le32 crc;
 114 } __packed;
 115
 116 /* pipes 3 and 4 are not used by the driver */
 117 #define P54U_PIPE_NUMBER 9
 118
 119 enum p54u_pipe_addr {
 120         P54U_PIPE_DATA = 0x01,
 121         P54U_PIPE_MGMT = 0x02,
 122         P54U_PIPE_3 = 0x03,
 123         P54U_PIPE_4 = 0x04,
 124         P54U_PIPE_BRG = 0x0d,
 125         P54U_PIPE_DEV = 0x0e,
 126         P54U_PIPE_INT = 0x0f
 127 };
 128
 129 struct p54u_rx_info {
 130         struct urb *urb;
 131         struct ieee80211_hw *dev;
 132 };
 133
 134 enum p54u_hw_type {
 135         P54U_INVALID_HW,
 136         P54U_NET2280,
 137         P54U_3887,
 138
 139         /* keep last */
 140         __NUM_P54U_HWTYPES,
 141 };
 142
 143 struct p54u_priv {
 144         struct p54_common common;
 145         struct usb_device *udev;
 146         struct usb_interface *intf;
 147         int (*upload_fw)(struct ieee80211_hw *dev);
 148
 149         enum p54u_hw_type hw_type;
 150         spinlock_t lock;
 151         struct sk_buff_head rx_queue;
 152         struct usb_anchor submitted;
 153         const struct firmware *fw;
 154
 155         /* asynchronous firmware callback */
 156         struct completion fw_wait_load;
 157 };
 158
 159 #endif /* P54USB_H */