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 239