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 45struct wl1271; 46 47void wlcore_disable_interrupts(struct wl1271 *wl); 48void wlcore_disable_interrupts_nosync(struct wl1271 *wl); 49void wlcore_enable_interrupts(struct wl1271 *wl); 50void wlcore_synchronize_interrupts(struct wl1271 *wl); 51 52void wl1271_io_reset(struct wl1271 *wl); 53void wl1271_io_init(struct wl1271 *wl); 54int wlcore_translate_addr(struct wl1271 *wl, int addr); 55 56/* Raw target IO, address is not translated */ 57static 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 75static 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 93static 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 100static 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 107static 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 123static 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 131static 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 141static 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 151static 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 158static 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 165static 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 180static 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 186static 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 192static 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 200static 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 208static 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 220static 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 229int wlcore_set_partition(struct wl1271 *wl, 230 const struct wlcore_partition_set *p); 231 232bool wl1271_set_block_size(struct wl1271 *wl); 233 234/* Functions from wl1271_main.c */ 235 236int wl1271_tx_dummy_packet(struct wl1271 *wl); 237 238#endif 239