drivers/net/wireless/iwlegacy/iwl-3945-fh.h

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
  23  *
  24  * The full GNU General Public License is included in this distribution
  25  * in the file called LICENSE.GPL.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
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  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  *  * Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63 #ifndef __iwl_3945_fh_h__
  64 #define __iwl_3945_fh_h__
  65
  66 /************************************/
  67 /* iwl3945 Flow Handler Definitions */
  68 /************************************/
  69
  70 /**
  71  * This I/O area is directly read/writable by driver (e.g. Linux uses writel())
  72  * Addresses are offsets from device's PCI hardware base address.
  73  */
  74 #define FH39_MEM_LOWER_BOUND                   (0x0800)
  75 #define FH39_MEM_UPPER_BOUND                   (0x1000)
  76
  77 #define FH39_CBCC_TABLE         (FH39_MEM_LOWER_BOUND + 0x140)
  78 #define FH39_TFDB_TABLE         (FH39_MEM_LOWER_BOUND + 0x180)
  79 #define FH39_RCSR_TABLE         (FH39_MEM_LOWER_BOUND + 0x400)
  80 #define FH39_RSSR_TABLE         (FH39_MEM_LOWER_BOUND + 0x4c0)
  81 #define FH39_TCSR_TABLE         (FH39_MEM_LOWER_BOUND + 0x500)
  82 #define FH39_TSSR_TABLE         (FH39_MEM_LOWER_BOUND + 0x680)
  83
  84 /* TFDB (Transmit Frame Buffer Descriptor) */
  85 #define FH39_TFDB(_ch, buf)                     (FH39_TFDB_TABLE + \
  86                                                  ((_ch) * 2 + (buf)) * 0x28)
  87 #define FH39_TFDB_CHNL_BUF_CTRL_REG(_ch)        (FH39_TFDB_TABLE + 0x50 * (_ch))
  88
  89 /* CBCC channel is [0,2] */
  90 #define FH39_CBCC(_ch)          (FH39_CBCC_TABLE + (_ch) * 0x8)
  91 #define FH39_CBCC_CTRL(_ch)     (FH39_CBCC(_ch) + 0x00)
  92 #define FH39_CBCC_BASE(_ch)     (FH39_CBCC(_ch) + 0x04)
  93
  94 /* RCSR channel is [0,2] */
  95 #define FH39_RCSR(_ch)                  (FH39_RCSR_TABLE + (_ch) * 0x40)
  96 #define FH39_RCSR_CONFIG(_ch)           (FH39_RCSR(_ch) + 0x00)
  97 #define FH39_RCSR_RBD_BASE(_ch)         (FH39_RCSR(_ch) + 0x04)
  98 #define FH39_RCSR_WPTR(_ch)             (FH39_RCSR(_ch) + 0x20)
  99 #define FH39_RCSR_RPTR_ADDR(_ch)        (FH39_RCSR(_ch) + 0x24)
 100
 101 #define FH39_RSCSR_CHNL0_WPTR           (FH39_RCSR_WPTR(0))
 102
 103 /* RSSR */
 104 #define FH39_RSSR_CTRL                  (FH39_RSSR_TABLE + 0x000)
 105 #define FH39_RSSR_STATUS                (FH39_RSSR_TABLE + 0x004)
 106
 107 /* TCSR */
 108 #define FH39_TCSR(_ch)                  (FH39_TCSR_TABLE + (_ch) * 0x20)
 109 #define FH39_TCSR_CONFIG(_ch)           (FH39_TCSR(_ch) + 0x00)
 110 #define FH39_TCSR_CREDIT(_ch)           (FH39_TCSR(_ch) + 0x04)
 111 #define FH39_TCSR_BUFF_STTS(_ch)        (FH39_TCSR(_ch) + 0x08)
 112
 113 /* TSSR */
 114 #define FH39_TSSR_CBB_BASE        (FH39_TSSR_TABLE + 0x000)
 115 #define FH39_TSSR_MSG_CONFIG      (FH39_TSSR_TABLE + 0x008)
 116 #define FH39_TSSR_TX_STATUS       (FH39_TSSR_TABLE + 0x010)
 117
 118
 119 /* DBM */
 120
 121 #define FH39_SRVC_CHNL                            (6)
 122
 123 #define FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE     (20)
 124 #define FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH      (4)
 125
 126 #define FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN    (0x08000000)
 127
 128 #define FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE        (0x80000000)
 129
 130 #define FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE           (0x20000000)
 131
 132 #define FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128           (0x01000000)
 133
 134 #define FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST           (0x00001000)
 135
 136 #define FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH                 (0x00000000)
 137
 138 #define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF                (0x00000000)
 139 #define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER             (0x00000001)
 140
 141 #define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL      (0x00000000)
 142 #define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL       (0x00000008)
 143
 144 #define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD             (0x00200000)
 145
 146 #define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT              (0x00000000)
 147
 148 #define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE              (0x00000000)
 149 #define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE             (0x80000000)
 150
 151 #define FH39_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID            (0x00004000)
 152
 153 #define FH39_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR             (0x00000001)
 154
 155 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON        (0xFF000000)
 156 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON        (0x00FF0000)
 157
 158 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B      (0x00000400)
 159
 160 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON         (0x00000100)
 161 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON         (0x00000080)
 162
 163 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH       (0x00000020)
 164 #define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH             (0x00000005)
 165
 166 #define FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch)     (BIT(_ch) << 24)
 167 #define FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch)    (BIT(_ch) << 16)
 168
 169 #define FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_ch) \
 170         (FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) | \
 171          FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch))
 172
 173 #define FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE                     (0x01000000)
 174
 175 struct iwl3945_tfd_tb {
 176         __le32 addr;
 177         __le32 len;
 178 } __packed;
 179
 180 struct iwl3945_tfd {
 181         __le32 control_flags;
 182         struct iwl3945_tfd_tb tbs[4];
 183         u8 __pad[28];
 184 } __packed;
 185
 186
 187 #endif /* __iwl_3945_fh_h__ */