drivers/net/wireless/iwlwifi/iwl-io.h

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
   4  *
   5  * Portions of this file are derived from the ipw3945 project.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  19  *
  20  * The full GNU General Public License is included in this distribution in the
  21  * file called LICENSE.
  22  *
  23  * Contact Information:
  24  *  Intel Linux Wireless <ilw@linux.intel.com>
  25  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26  *
  27  *****************************************************************************/
  28
  29 #ifndef __iwl_io_h__
  30 #define __iwl_io_h__
  31
  32 #include <linux/io.h>
  33
  34 #include "iwl-dev.h"
  35 #include "iwl-debug.h"
  36 #include "iwl-devtrace.h"
  37 #include "iwl-bus.h"
  38
  39 static inline void iwl_write8(struct iwl_priv *priv, u32 ofs, u8 val)
  40 {
  41         trace_iwlwifi_dev_iowrite8(priv, ofs, val);
  42         bus_write8(priv->bus, ofs, val);
  43 }
  44
  45 static inline void iwl_write32(struct iwl_priv *priv, u32 ofs, u32 val)
  46 {
  47         trace_iwlwifi_dev_iowrite32(priv, ofs, val);
  48         bus_write32(priv->bus, ofs, val);
  49 }
  50
  51 static inline u32 iwl_read32(struct iwl_priv *priv, u32 ofs)
  52 {
  53         u32 val = bus_read32(priv->bus, ofs);
  54         trace_iwlwifi_dev_ioread32(priv, ofs, val);
  55         return val;
  56 }
  57
  58 void iwl_set_bit(struct iwl_priv *priv, u32 reg, u32 mask);
  59 void iwl_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask);
  60
  61 int iwl_poll_bit(struct iwl_priv *priv, u32 addr,
  62                  u32 bits, u32 mask, int timeout);
  63 int iwl_poll_direct_bit(struct iwl_priv *priv, u32 addr, u32 mask,
  64                         int timeout);
  65
  66 int iwl_grab_nic_access_silent(struct iwl_priv *priv);
  67 int iwl_grab_nic_access(struct iwl_priv *priv);
  68 void iwl_release_nic_access(struct iwl_priv *priv);
  69
  70 u32 iwl_read_direct32(struct iwl_priv *priv, u32 reg);
  71 void iwl_write_direct32(struct iwl_priv *priv, u32 reg, u32 value);
  72
  73
  74 u32 iwl_read_prph(struct iwl_priv *priv, u32 reg);
  75 void iwl_write_prph(struct iwl_priv *priv, u32 addr, u32 val);
  76 void iwl_set_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask);
  77 void iwl_set_bits_mask_prph(struct iwl_priv *priv, u32 reg,
  78                             u32 bits, u32 mask);
  79 void iwl_clear_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask);
  80
  81 void _iwl_read_targ_mem_words(struct iwl_priv *priv, u32 addr,
  82                               void *buf, int words);
  83
  84 #define iwl_read_targ_mem_words(priv, addr, buf, bufsize)       \
  85         do {                                                    \
  86                 BUILD_BUG_ON((bufsize) % sizeof(u32));          \
  87                 _iwl_read_targ_mem_words(priv, addr, buf,       \
  88                                          (bufsize) / sizeof(u32));\
  89         } while (0)
  90
  91 u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr);
  92 void iwl_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val);
  93 #endif