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

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * This file is part of wl1271
   4  *
   5  * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
   6  * Copyright (C) 2008-2010 Nokia Corporation
   7  *
   8  * Contact: Luciano Coelho <luciano.coelho@nokia.com>
   9  */
  10
  11 #ifndef __IO_H__
  12 #define __IO_H__
  13
  14 #include <linux/irqreturn.h>
  15
  16 #define HW_ACCESS_MEMORY_MAX_RANGE      0x1FFC0
  17
  18 #define HW_PARTITION_REGISTERS_ADDR     0x1FFC0
  19 #define HW_PART0_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR)
  20 #define HW_PART0_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 4)
  21 #define HW_PART1_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 8)
  22 #define HW_PART1_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 12)
  23 #define HW_PART2_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 16)
  24 #define HW_PART2_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 20)
  25 #define HW_PART3_SIZE_ADDR              (HW_PARTITION_REGISTERS_ADDR + 24)
  26 #define HW_PART3_START_ADDR             (HW_PARTITION_REGISTERS_ADDR + 28)
  27
  28 #define HW_ACCESS_REGISTER_SIZE         4
  29
  30 #define HW_ACCESS_PRAM_MAX_RANGE        0x3c000
  31
  32 struct wl1271;
  33
  34 void wlcore_disable_interrupts(struct wl1271 *wl);
  35 void wlcore_disable_interrupts_nosync(struct wl1271 *wl);
  36 void wlcore_enable_interrupts(struct wl1271 *wl);
  37 void wlcore_synchronize_interrupts(struct wl1271 *wl);
  38
  39 void wl1271_io_reset(struct wl1271 *wl);
  40 void wl1271_io_init(struct wl1271 *wl);
  41 int wlcore_translate_addr(struct wl1271 *wl, int addr);
  42
  43 /* Raw target IO, address is not translated */
  44 static inline int __must_check wlcore_raw_write(struct wl1271 *wl, int addr,
  45                                                 void *buf, size_t len,
  46                                                 bool fixed)
  47 {
  48         int ret;
  49
  50         if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
  51             WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
  52                      addr != HW_ACCESS_ELP_CTRL_REG)))
  53                 return -EIO;
  54
  55         ret = wl->if_ops->write(wl->dev, addr, buf, len, fixed);
  56         if (ret && wl->state != WLCORE_STATE_OFF)
  57                 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
  58
  59         return ret;
  60 }
  61
  62 static inline int __must_check wlcore_raw_read(struct wl1271 *wl, int addr,
  63                                                void *buf, size_t len,
  64                                                bool fixed)
  65 {
  66         int ret;
  67
  68         if (test_bit(WL1271_FLAG_IO_FAILED, &wl->flags) ||
  69             WARN_ON((test_bit(WL1271_FLAG_IN_ELP, &wl->flags) &&
  70                      addr != HW_ACCESS_ELP_CTRL_REG)))
  71                 return -EIO;
  72
  73         ret = wl->if_ops->read(wl->dev, addr, buf, len, fixed);
  74         if (ret && wl->state != WLCORE_STATE_OFF)
  75                 set_bit(WL1271_FLAG_IO_FAILED, &wl->flags);
  76
  77         return ret;
  78 }
  79
  80 static inline int __must_check wlcore_raw_read_data(struct wl1271 *wl, int reg,
  81                                                     void *buf, size_t len,
  82                                                     bool fixed)
  83 {
  84         return wlcore_raw_read(wl, wl->rtable[reg], buf, len, fixed);
  85 }
  86
  87 static inline int __must_check wlcore_raw_write_data(struct wl1271 *wl, int reg,
  88                                                      void *buf, size_t len,
  89                                                      bool fixed)
  90 {
  91         return wlcore_raw_write(wl, wl->rtable[reg], buf, len, fixed);
  92 }
  93
  94 static inline int __must_check wlcore_raw_read32(struct wl1271 *wl, int addr,
  95                                                  u32 *val)
  96 {
  97         int ret;
  98
  99         ret = wlcore_raw_read(wl, addr, wl->buffer_32,
 100                               sizeof(*wl->buffer_32), false);
 101         if (ret < 0)
 102                 return ret;
 103
 104         if (val)
 105                 *val = le32_to_cpu(*wl->buffer_32);
 106
 107         return 0;
 108 }
 109
 110 static inline int __must_check wlcore_raw_write32(struct wl1271 *wl, int addr,
 111                                                   u32 val)
 112 {
 113         *wl->buffer_32 = cpu_to_le32(val);
 114         return wlcore_raw_write(wl, addr, wl->buffer_32,
 115                                 sizeof(*wl->buffer_32), false);
 116 }
 117
 118 static inline int __must_check wlcore_read(struct wl1271 *wl, int addr,
 119                                            void *buf, size_t len, bool fixed)
 120 {
 121         int physical;
 122
 123         physical = wlcore_translate_addr(wl, addr);
 124
 125         return wlcore_raw_read(wl, physical, buf, len, fixed);
 126 }
 127
 128 static inline int __must_check wlcore_write(struct wl1271 *wl, int addr,
 129                                             void *buf, size_t len, bool fixed)
 130 {
 131         int physical;
 132
 133         physical = wlcore_translate_addr(wl, addr);
 134
 135         return wlcore_raw_write(wl, physical, buf, len, fixed);
 136 }
 137
 138 static inline int __must_check wlcore_write_data(struct wl1271 *wl, int reg,
 139                                                  void *buf, size_t len,
 140                                                  bool fixed)
 141 {
 142         return wlcore_write(wl, wl->rtable[reg], buf, len, fixed);
 143 }
 144
 145 static inline int __must_check wlcore_read_data(struct wl1271 *wl, int reg,
 146                                                 void *buf, size_t len,
 147                                                 bool fixed)
 148 {
 149         return wlcore_read(wl, wl->rtable[reg], buf, len, fixed);
 150 }
 151
 152 static inline int __must_check wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
 153                                                   void *buf, size_t len,
 154                                                   bool fixed)
 155 {
 156         int physical;
 157         int addr;
 158
 159         /* Convert from FW internal address which is chip arch dependent */
 160         addr = wl->ops->convert_hwaddr(wl, hwaddr);
 161
 162         physical = wlcore_translate_addr(wl, addr);
 163
 164         return wlcore_raw_read(wl, physical, buf, len, fixed);
 165 }
 166
 167 static inline int __must_check wlcore_read32(struct wl1271 *wl, int addr,
 168                                              u32 *val)
 169 {
 170         return wlcore_raw_read32(wl, wlcore_translate_addr(wl, addr), val);
 171 }
 172
 173 static inline int __must_check wlcore_write32(struct wl1271 *wl, int addr,
 174                                               u32 val)
 175 {
 176         return wlcore_raw_write32(wl, wlcore_translate_addr(wl, addr), val);
 177 }
 178
 179 static inline int __must_check wlcore_read_reg(struct wl1271 *wl, int reg,
 180                                                u32 *val)
 181 {
 182         return wlcore_raw_read32(wl,
 183                                  wlcore_translate_addr(wl, wl->rtable[reg]),
 184                                  val);
 185 }
 186
 187 static inline int __must_check wlcore_write_reg(struct wl1271 *wl, int reg,
 188                                                 u32 val)
 189 {
 190         return wlcore_raw_write32(wl,
 191                                   wlcore_translate_addr(wl, wl->rtable[reg]),
 192                                   val);
 193 }
 194
 195 static inline void wl1271_power_off(struct wl1271 *wl)
 196 {
 197         int ret = 0;
 198
 199         if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
 200                 return;
 201
 202         if (wl->if_ops->power)
 203                 ret = wl->if_ops->power(wl->dev, false);
 204         if (!ret)
 205                 clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 206 }
 207
 208 static inline int wl1271_power_on(struct wl1271 *wl)
 209 {
 210         int ret = 0;
 211
 212         if (wl->if_ops->power)
 213                 ret = wl->if_ops->power(wl->dev, true);
 214         if (ret == 0)
 215                 set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
 216
 217         return ret;
 218 }
 219
 220 int wlcore_set_partition(struct wl1271 *wl,
 221                          const struct wlcore_partition_set *p);
 222
 223 bool wl1271_set_block_size(struct wl1271 *wl);
 224
 225 /* Functions from wl1271_main.c */
 226
 227 int wl1271_tx_dummy_packet(struct wl1271 *wl);
 228
 229 #endif