kernel/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             WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
  65                      addr != HW_ACCESS_ELP_CTRL_REG)))
  66                 return -EIO;
  67
  68         ret = wl->if_ops->write(wl->dev, addr, buf, len, fixed);
  69         if (ret && wl->state != WLCORE_STATE_OFF)
  70                 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
  71
  72         return ret;
  73 }
  74
  75 static inline int __must_check wlcore_raw_read(struct wl1271 *wl, int addr,
  76                                                void *buf, size_t len,
  77                                                bool fixed)
  78 {
  79         int ret;
  80
  81         if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
  82             WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
  83                      addr != HW_ACCESS_ELP_CTRL_REG)))
  84                 return -EIO;
  85
  86         ret = wl->if_ops->read(wl->dev, addr, buf, len, fixed);
  87         if (ret && wl->state != WLCORE_STATE_OFF)
  88                 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
  89
  90         return ret;
  91 }
  92
  93 static inline int __must_check wlcore_raw_read_data(struct wl1271 *wl, int reg,
  94                                                     void *buf, size_t len,
  95                                                     bool fixed)
  96 {
  97         return wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
  98 }
  99
 100 static inline int __must_check wlcore_raw_write_data(struct wl1271 *wl, int reg,
 101                                                      void *buf, size_t len,
 102                                                      bool fixed)
 103 {
 104         return wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
 105 }
 106
 107 static inline int __must_check wlcore_raw_read32(struct wl1271 *wl, int addr,
 108                                                  u32 *val)
 109 {
 110         int ret;
 111
 112         ret = wlcore_raw_read(wl, addr, wl->buffer_32,
 113                               sizeof(*wl->buffer_32), false);
 114         if (ret < 0)
 115                 return ret;
 116
 117         if (val)
 118                 *val = le32_to_cpu(*wl->buffer_32);
 119
 120         return 0;
 121 }
 122
 123 static inline int __must_check wlcore_raw_write32(struct wl1271 *wl, int addr,
 124                                                   u32 val)
 125 {
 126         *wl->buffer_32 = cpu_to_le32(val);
 127         return wlcore_raw_write(wl, addr, wl->buffer_32,
 128                                 sizeof(*wl->buffer_32), false);
 129 }
 130
 131 static inline int __must_check wlcore_read(struct wl1271 *wl, int addr,
 132                                            void *buf, size_t len, bool fixed)
 133 {
 134         int physical;
 135
 136         physical = wlcore_translate_addr(wl, addr);
 137
 138         return wlcore_raw_read(wl, physical, buf, len, fixed);
 139 }
 140
 141 static inline int __must_check wlcore_write(struct wl1271 *wl, int addr,
 142                                             void *buf, size_t len, bool fixed)
 143 {
 144         int physical;
 145
 146         physical = wlcore_translate_addr(wl, addr);
 147
 148         return wlcore_raw_write(wl, physical, buf, len, fixed);
 149 }
 150
 151 static inline int __must_check wlcore_write_data(struct wl1271 *wl, int reg,
 152                                                  void *buf, size_t len,
 153                                                  bool fixed)
 154 {
 155         return wlcore_write(wl, wl->rtable[reg], buf, len, fixed);
 156 }
 157
 158 static inline int __must_check wlcore_read_data(struct wl1271 *wl, int reg,
 159                                                 void *buf, size_t len,
 160                                                 bool fixed)
 161 {
 162         return wlcore_read(wl, wl->rtable[reg], buf, len, fixed);
 163 }
 164
 165 static inline int __must_check wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
 166                                                   void *buf, size_t len,
 167                                                   bool fixed)
 168 {
 169         int physical;
 170         int addr;
 171
 172         /* Convert from FW internal address which is chip arch dependent */
 173         addr = wl->ops->convert_hwaddr(wl, hwaddr);
 174
 175         physical = wlcore_translate_addr(wl, addr);
 176
 177         return wlcore_raw_read(wl, physical, buf, len, fixed);
 178 }
 179
 180 static inline int __must_check wlcore_read32(struct wl1271 *wl, int addr,
 181                                              u32 *val)
 182 {
 183         return wlcore_raw_read32(wl, wlcore_translate_addr(wl, addr), val);
 184 }
 185
 186 static inline int __must_check wlcore_write32(struct wl1271 *wl, int addr,
 187                                               u32 val)
 188 {
 189         return wlcore_raw_write32(wl, wlcore_translate_addr(wl, addr), val);
 190 }
 191
 192 static inline int __must_check wlcore_read_reg(struct wl1271 *wl, int reg,
 193                                                u32 *val)
 194 {
 195         return wlcore_raw_read32(wl,
 196                                  wlcore_translate_addr(wl, wl->rtable[reg]),
 197                                  val);
 198 }
 199
 200 static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
 201                                                 u32 val)
 202 {
 203         return wlcore_raw_write32(wl,
 204                                   wlcore_translate_addr(wl, wl->rtable[reg]),
 205                                   val);
 206 }
 207
 208 static inline void wl1271_power_off(struct wl1271 *wl)
 209 {
 210         int ret;
 211
 212         if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
 213                 return;
 214
 215         ret = wl->if_ops->power(wl->dev, false);
 216         if (!ret)
 217                 clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 218 }
 219
 220 static inline int wl1271_power_on(struct wl1271 *wl)
 221 {
 222         int ret = wl->if_ops->power(wl->dev, true);
 223         if (ret == 0)
 224                 set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 225
 226         return ret;
 227 }
 228
 229 int wlcore_set_partition(struct wl1271 *wl,
 230                          const struct wlcore_partition_set *p);
 231
 232 bool wl1271_set_block_size(struct wl1271 *wl);
 233
 234 /* Functions from wl1271_main.c */
 235
 236 int wl1271_tx_dummy_packet(struct wl1271 *wl);
 237
 238 #endif