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 244