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_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 24)
  40 #define HW_PART3_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 28)
  41
  42 #define HW_ACCESS_REGISTER_SIZE         4
  43
  44 #define HW_ACCESS_PRAM_MAX_RANGE        0x3c000
  45
  46 struct wl1271;
  47
  48 void wlcore_disable_interrupts(struct wl1271 *wl);
  49 void wlcore_disable_interrupts_nosync(struct wl1271 *wl);
  50 void wlcore_enable_interrupts(struct wl1271 *wl);
  51 void wlcore_synchronize_interrupts(struct wl1271 *wl);
  52
  53 void wl1271_io_reset(struct wl1271 *wl);
  54 void wl1271_io_init(struct wl1271 *wl);
  55 int wlcore_translate_addr(struct wl1271 *wl, int addr);
  56
  57 /* Raw target IO, address is not translated */
  58 static inline int __must_check wlcore_raw_write(struct wl1271 *wl, int addr,
  59                                                 void *buf, size_t len,
  60                                                 bool fixed)
  61 {
  62         int ret;
  63
  64         if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
  65             WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
  66                      addr != HW_ACCESS_ELP_CTRL_REG)))
  67                 return -EIO;
  68
  69         ret = wl->if_ops->write(wl->dev, addr, buf, len, fixed);
  70         if (ret && wl->state != WLCORE_STATE_OFF)
  71                 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
  72
  73         return ret;
  74 }
  75
  76 static inline int __must_check wlcore_raw_read(struct wl1271 *wl, int addr,
  77                                                void *buf, size_t len,
  78                                                bool fixed)
  79 {
  80         int ret;
  81
  82         if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
  83             WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
  84                      addr != HW_ACCESS_ELP_CTRL_REG)))
  85                 return -EIO;
  86
  87         ret = wl->if_ops->read(wl->dev, addr, buf, len, fixed);
  88         if (ret && wl->state != WLCORE_STATE_OFF)
  89                 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
  90
  91         return ret;
  92 }
  93
  94 static inline int __must_check wlcore_raw_read_data(struct wl1271 *wl, int reg,
  95                                                     void *buf, size_t len,
  96                                                     bool fixed)
  97 {
  98         return wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
  99 }
 100
 101 static inline int __must_check wlcore_raw_write_data(struct wl1271 *wl, int reg,
 102                                                      void *buf, size_t len,
 103                                                      bool fixed)
 104 {
 105         return wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
 106 }
 107
 108 static inline int __must_check wlcore_raw_read32(struct wl1271 *wl, int addr,
 109                                                  u32 *val)
 110 {
 111         int ret;
 112
 113         ret = wlcore_raw_read(wl, addr, wl->buffer_32,
 114                               sizeof(*wl->buffer_32), false);
 115         if (ret < 0)
 116                 return ret;
 117
 118         if (val)
 119                 *val = le32_to_cpu(*wl->buffer_32);
 120
 121         return 0;
 122 }
 123
 124 static inline int __must_check wlcore_raw_write32(struct wl1271 *wl, int addr,
 125                                                   u32 val)
 126 {
 127         *wl->buffer_32 = cpu_to_le32(val);
 128         return wlcore_raw_write(wl, addr, wl->buffer_32,
 129                                 sizeof(*wl->buffer_32), false);
 130 }
 131
 132 static inline int __must_check wlcore_read(struct wl1271 *wl, int addr,
 133                                            void *buf, size_t len, bool fixed)
 134 {
 135         int physical;
 136
 137         physical = wlcore_translate_addr(wl, addr);
 138
 139         return wlcore_raw_read(wl, physical, buf, len, fixed);
 140 }
 141
 142 static inline int __must_check wlcore_write(struct wl1271 *wl, int addr,
 143                                             void *buf, size_t len, bool fixed)
 144 {
 145         int physical;
 146
 147         physical = wlcore_translate_addr(wl, addr);
 148
 149         return wlcore_raw_write(wl, physical, buf, len, fixed);
 150 }
 151
 152 static inline int __must_check wlcore_write_data(struct wl1271 *wl, int reg,
 153                                                  void *buf, size_t len,
 154                                                  bool fixed)
 155 {
 156         return wlcore_write(wl, wl->rtable[reg], buf, len, fixed);
 157 }
 158
 159 static inline int __must_check wlcore_read_data(struct wl1271 *wl, int reg,
 160                                                 void *buf, size_t len,
 161                                                 bool fixed)
 162 {
 163         return wlcore_read(wl, wl->rtable[reg], buf, len, fixed);
 164 }
 165
 166 static inline int __must_check wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
 167                                                   void *buf, size_t len,
 168                                                   bool fixed)
 169 {
 170         int physical;
 171         int addr;
 172
 173         /* Convert from FW internal address which is chip arch dependent */
 174         addr = wl->ops->convert_hwaddr(wl, hwaddr);
 175
 176         physical = wlcore_translate_addr(wl, addr);
 177
 178         return wlcore_raw_read(wl, physical, buf, len, fixed);
 179 }
 180
 181 static inline int __must_check wlcore_read32(struct wl1271 *wl, int addr,
 182                                              u32 *val)
 183 {
 184         return wlcore_raw_read32(wl, wlcore_translate_addr(wl, addr), val);
 185 }
 186
 187 static inline int __must_check wlcore_write32(struct wl1271 *wl, int addr,
 188                                               u32 val)
 189 {
 190         return wlcore_raw_write32(wl, wlcore_translate_addr(wl, addr), val);
 191 }
 192
 193 static inline int __must_check wlcore_read_reg(struct wl1271 *wl, int reg,
 194                                                u32 *val)
 195 {
 196         return wlcore_raw_read32(wl,
 197                                  wlcore_translate_addr(wl, wl->rtable[reg]),
 198                                  val);
 199 }
 200
 201 static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
 202                                                 u32 val)
 203 {
 204         return wlcore_raw_write32(wl,
 205                                   wlcore_translate_addr(wl, wl->rtable[reg]),
 206                                   val);
 207 }
 208
 209 static inline void wl1271_power_off(struct wl1271 *wl)
 210 {
 211         int ret = 0;
 212
 213         if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
 214                 return;
 215
 216         if (wl->if_ops->power)
 217                 ret = wl->if_ops->power(wl->dev, false);
 218         if (!ret)
 219                 clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 220 }
 221
 222 static inline int wl1271_power_on(struct wl1271 *wl)
 223 {
 224         int ret = 0;
 225
 226         if (wl->if_ops->power)
 227                 ret = wl->if_ops->power(wl->dev, true);
 228         if (ret == 0)
 229                 set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 230
 231         return ret;
 232 }
 233
 234 int wlcore_set_partition(struct wl1271 *wl,
 235                          const struct wlcore_partition_set *p);
 236
 237 bool wl1271_set_block_size(struct wl1271 *wl);
 238
 239 /* Functions from wl1271_main.c */
 240
 241 int wl1271_tx_dummy_packet(struct wl1271 *wl);
 242
 243 #endif