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 "iwl-devtrace.h"
  33 #include "iwl-shared.h"
  34 #include "iwl-bus.h"
  35
  36 static inline void iwl_write8(struct iwl_bus *bus, u32 ofs, u8 val)
  37 {
  38         trace_iwlwifi_dev_iowrite8(priv(bus), ofs, val);
  39         bus_write8(bus, ofs, val);
  40 }
  41
  42 static inline void iwl_write32(struct iwl_bus *bus, u32 ofs, u32 val)
  43 {
  44         trace_iwlwifi_dev_iowrite32(priv(bus), ofs, val);
  45         bus_write32(bus, ofs, val);
  46 }
  47
  48 static inline u32 iwl_read32(struct iwl_bus *bus, u32 ofs)
  49 {
  50         u32 val = bus_read32(bus, ofs);
  51         trace_iwlwifi_dev_ioread32(priv(bus), ofs, val);
  52         return val;
  53 }
  54
  55 void iwl_set_bit(struct iwl_bus *bus, u32 reg, u32 mask);
  56 void iwl_clear_bit(struct iwl_bus *bus, u32 reg, u32 mask);
  57
  58 int iwl_poll_bit(struct iwl_bus *bus, u32 addr,
  59                  u32 bits, u32 mask, int timeout);
  60 int iwl_poll_direct_bit(struct iwl_bus *bus, u32 addr, u32 mask,
  61                         int timeout);
  62
  63 int iwl_grab_nic_access_silent(struct iwl_bus *bus);
  64 int iwl_grab_nic_access(struct iwl_bus *bus);
  65 void iwl_release_nic_access(struct iwl_bus *bus);
  66
  67 u32 iwl_read_direct32(struct iwl_bus *bus, u32 reg);
  68 void iwl_write_direct32(struct iwl_bus *bus, u32 reg, u32 value);
  69
  70
  71 u32 iwl_read_prph(struct iwl_bus *bus, u32 reg);
  72 void iwl_write_prph(struct iwl_bus *bus, u32 addr, u32 val);
  73 void iwl_set_bits_prph(struct iwl_bus *bus, u32 reg, u32 mask);
  74 void iwl_set_bits_mask_prph(struct iwl_bus *bus, u32 reg,
  75                             u32 bits, u32 mask);
  76 void iwl_clear_bits_prph(struct iwl_bus *bus, u32 reg, u32 mask);
  77
  78 void _iwl_read_targ_mem_words(struct iwl_bus *bus, u32 addr,
  79                               void *buf, int words);
  80
  81 #define iwl_read_targ_mem_words(bus, addr, buf, bufsize)        \
  82         do {                                                    \
  83                 BUILD_BUG_ON((bufsize) % sizeof(u32));          \
  84                 _iwl_read_targ_mem_words(bus, addr, buf,        \
  85                                          (bufsize) / sizeof(u32));\
  86         } while (0)
  87
  88 int _iwl_write_targ_mem_words(struct iwl_bus *bus, u32 addr,
  89                               void *buf, int words);
  90
  91 u32 iwl_read_targ_mem(struct iwl_bus *bus, u32 addr);
  92 int iwl_write_targ_mem(struct iwl_bus *bus, u32 addr, u32 val);
  93 #endif