drivers/net/wireless/ti/wlcore/io.h

   1 /*
   2  * This file is part of wl1271
   3  *
   4  * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
   5  * Copyright (C) 2008-2010 Nokia Corporation
   6  *
   7  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #ifndef __IO_H__
  26 #define __IO_H__
  27
  28 #include <linux/irqreturn.h>
  29
  30 #define HW_ACCESS_MEMORY_MAX_RANGE      0x1FFC0
  31
  32 #define HW_PARTITION_REGISTERS_ADDR     0x1FFC0
  33 #define HW_PART0_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR)
  34 #define HW_PART0_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 4)
  35 #define HW_PART1_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 8)
  36 #define HW_PART1_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 12)
  37 #define HW_PART2_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 16)
  38 #define HW_PART2_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 20)
  39 #define HW_PART3_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 24)
  40
  41 #define HW_ACCESS_REGISTER_SIZE         4
  42
  43 #define HW_ACCESS_PRAM_MAX_RANGE        0x3c000
  44
  45 struct wl1271;
  46
  47 void wlcore_disable_interrupts(struct wl1271 *wl);
  48 void wlcore_disable_interrupts_nosync(struct wl1271 *wl);
  49 void wlcore_enable_interrupts(struct wl1271 *wl);
  50 void wlcore_synchronize_interrupts(struct wl1271 *wl);
  51
  52 void wl1271_io_reset(struct wl1271 *wl);
  53 void wl1271_io_init(struct wl1271 *wl);
  54 int wlcore_translate_addr(struct wl1271 *wl, int addr);
  55
  56 /* Raw target IO, address is not translated */
  57 static inline int __must_check wlcore_raw_write(struct wl1271 *wl, int addr,
  58                                                 void *buf, size_t len,
  59                                                 bool fixed)
  60 {
  61         int ret;
  62
  63         if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags))
  64                 return -EIO;
  65
  66         ret = wl->if_ops->write(wl->dev, addr, buf, len, fixed);
  67         if (ret && wl->state != WLCORE_STATE_OFF)
  68                 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
  69
  70         return ret;
  71 }
  72
  73 static inline int __must_check wlcore_raw_read(struct wl1271 *wl, int addr,
  74                                                void *buf, size_t len,
  75                                                bool fixed)
  76 {
  77         int ret;
  78
  79         if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags))
  80                 return -EIO;
  81
  82         ret = wl->if_ops->read(wl->dev, addr, buf, len, fixed);
  83         if (ret && wl->state != WLCORE_STATE_OFF)
  84                 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
  85
  86         return ret;
  87 }
  88
  89 static inline int __must_check wlcore_raw_read_data(struct wl1271 *wl, int reg,
  90                                                     void *buf, size_t len,
  91                                                     bool fixed)
  92 {
  93         return wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
  94 }
  95
  96 static inline int __must_check wlcore_raw_write_data(struct wl1271 *wl, int reg,
  97                                                      void *buf, size_t len,
  98                                                      bool fixed)
  99 {
 100         return wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
 101 }
 102
 103 static inline int __must_check wlcore_raw_read32(struct wl1271 *wl, int addr,
 104                                                  u32 *val)
 105 {
 106         int ret;
 107
 108         ret = wlcore_raw_read(wl, addr, wl->buffer_32,
 109                               sizeof(*wl->buffer_32), false);
 110         if (ret < 0)
 111                 return ret;
 112
 113         if (val)
 114                 *val = le32_to_cpu(*wl->buffer_32);
 115
 116         return 0;
 117 }
 118
 119 static inline int __must_check wlcore_raw_write32(struct wl1271 *wl, int addr,
 120                                                   u32 val)
 121 {
 122         *wl->buffer_32 = cpu_to_le32(val);
 123         return wlcore_raw_write(wl, addr, wl->buffer_32,
 124                                 sizeof(*wl->buffer_32), false);
 125 }
 126
 127 static inline int __must_check wlcore_read(struct wl1271 *wl, int addr,
 128                                            void *buf, size_t len, bool fixed)
 129 {
 130         int physical;
 131
 132         physical = wlcore_translate_addr(wl, addr);
 133
 134         return wlcore_raw_read(wl, physical, buf, len, fixed);
 135 }
 136
 137 static inline int __must_check wlcore_write(struct wl1271 *wl, int addr,
 138                                             void *buf, size_t len, bool fixed)
 139 {
 140         int physical;
 141
 142         physical = wlcore_translate_addr(wl, addr);
 143
 144         return wlcore_raw_write(wl, physical, buf, len, fixed);
 145 }
 146
 147 static inline int __must_check wlcore_write_data(struct wl1271 *wl, int reg,
 148                                                  void *buf, size_t len,
 149                                                  bool fixed)
 150 {
 151         return wlcore_write(wl, wl->rtable[reg], buf, len, fixed);
 152 }
 153
 154 static inline int __must_check wlcore_read_data(struct wl1271 *wl, int reg,
 155                                                 void *buf, size_t len,
 156                                                 bool fixed)
 157 {
 158         return wlcore_read(wl, wl->rtable[reg], buf, len, fixed);
 159 }
 160
 161 static inline int __must_check wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
 162                                                   void *buf, size_t len,
 163                                                   bool fixed)
 164 {
 165         int physical;
 166         int addr;
 167
 168         /* Addresses are stored internally as addresses to 32 bytes blocks */
 169         addr = hwaddr << 5;
 170
 171         physical = wlcore_translate_addr(wl, addr);
 172
 173         return wlcore_raw_read(wl, physical, buf, len, fixed);
 174 }
 175
 176 static inline int __must_check wlcore_read32(struct wl1271 *wl, int addr,
 177                                              u32 *val)
 178 {
 179         return wlcore_raw_read32(wl, wlcore_translate_addr(wl, addr), val);
 180 }
 181
 182 static inline int __must_check wlcore_write32(struct wl1271 *wl, int addr,
 183                                               u32 val)
 184 {
 185         return wlcore_raw_write32(wl, wlcore_translate_addr(wl, addr), val);
 186 }
 187
 188 static inline int __must_check wlcore_read_reg(struct wl1271 *wl, int reg,
 189                                                u32 *val)
 190 {
 191         return wlcore_raw_read32(wl,
 192                                  wlcore_translate_addr(wl, wl->rtable[reg]),
 193                                  val);
 194 }
 195
 196 static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
 197                                                 u32 val)
 198 {
 199         return wlcore_raw_write32(wl,
 200                                   wlcore_translate_addr(wl, wl->rtable[reg]),
 201                                   val);
 202 }
 203
 204 static inline void wl1271_power_off(struct wl1271 *wl)
 205 {
 206         int ret;
 207
 208         if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
 209                 return;
 210
 211         ret = wl->if_ops->power(wl->dev, false);
 212         if (!ret)
 213                 clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 214 }
 215
 216 static inline int wl1271_power_on(struct wl1271 *wl)
 217 {
 218         int ret = wl->if_ops->power(wl->dev, true);
 219         if (ret == 0)
 220                 set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 221
 222         return ret;
 223 }
 224
 225 int wlcore_set_partition(struct wl1271 *wl,
 226                          const struct wlcore_partition_set *p);
 227
 228 bool wl1271_set_block_size(struct wl1271 *wl);
 229
 230 /* Functions from wl1271_main.c */
 231
 232 int wl1271_tx_dummy_packet(struct wl1271 *wl);
 233
 234 #endif