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 230