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 __WL1271_IO_H__ 26#define __WL1271_IO_H__ 27 28#include "wl1271_reg.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 wl1271_disable_interrupts(struct wl1271 *wl); 48void wl1271_enable_interrupts(struct wl1271 *wl); 49 50void wl1271_io_reset(struct wl1271 *wl); 51void wl1271_io_init(struct wl1271 *wl); 52 53static inline struct device *wl1271_wl_to_dev(struct wl1271 *wl) 54{ 55 return wl->if_ops->dev(wl); 56} 57 58 59/* Raw target IO, address is not translated */ 60static inline void wl1271_raw_write(struct wl1271 *wl, int addr, void *buf, 61 size_t len, bool fixed) 62{ 63 wl->if_ops->write(wl, addr, buf, len, fixed); 64} 65 66static inline void wl1271_raw_read(struct wl1271 *wl, int addr, void *buf, 67 size_t len, bool fixed) 68{ 69 wl->if_ops->read(wl, addr, buf, len, fixed); 70} 71 72static inline u32 wl1271_raw_read32(struct wl1271 *wl, int addr) 73{ 74 wl1271_raw_read(wl, addr, &wl->buffer_32, 75 sizeof(wl->buffer_32), false); 76 77 return le32_to_cpu(wl->buffer_32); 78} 79 80static inline void wl1271_raw_write32(struct wl1271 *wl, int addr, u32 val) 81{ 82 wl->buffer_32 = cpu_to_le32(val); 83 wl1271_raw_write(wl, addr, &wl->buffer_32, 84 sizeof(wl->buffer_32), false); 85} 86 87/* Translated target IO */ 88static inline int wl1271_translate_addr(struct wl1271 *wl, int addr) 89{ 90 /* 91 * To translate, first check to which window of addresses the 92 * particular address belongs. Then subtract the starting address 93 * of that window from the address. Then, add offset of the 94 * translated region. 95 * 96 * The translated regions occur next to each other in physical device 97 * memory, so just add the sizes of the preceeding address regions to 98 * get the offset to the new region. 99 * 100 * Currently, only the two first regions are addressed, and the 101 * assumption is that all addresses will fall into either of those 102 * two. 103 */ 104 if ((addr >= wl->part.reg.start) && 105 (addr < wl->part.reg.start + wl->part.reg.size)) 106 return addr - wl->part.reg.start + wl->part.mem.size; 107 else 108 return addr - wl->part.mem.start; 109} 110 111static inline void wl1271_read(struct wl1271 *wl, int addr, void *buf, 112 size_t len, bool fixed) 113{ 114 int physical; 115 116 physical = wl1271_translate_addr(wl, addr); 117 118 wl1271_raw_read(wl, physical, buf, len, fixed); 119} 120 121static inline void wl1271_write(struct wl1271 *wl, int addr, void *buf, 122 size_t len, bool fixed) 123{ 124 int physical; 125 126 physical = wl1271_translate_addr(wl, addr); 127 128 wl1271_raw_write(wl, physical, buf, len, fixed); 129} 130 131static inline u32 wl1271_read32(struct wl1271 *wl, int addr) 132{ 133 return wl1271_raw_read32(wl, wl1271_translate_addr(wl, addr)); 134} 135 136static inline void wl1271_write32(struct wl1271 *wl, int addr, u32 val) 137{ 138 wl1271_raw_write32(wl, wl1271_translate_addr(wl, addr), val); 139} 140 141static inline void wl1271_power_off(struct wl1271 *wl) 142{ 143 wl->if_ops->power(wl, false); 144 clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); 145} 146 147static inline void wl1271_power_on(struct wl1271 *wl) 148{ 149 wl->if_ops->power(wl, true); 150 set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); 151} 152 153 154/* Top Register IO */ 155void wl1271_top_reg_write(struct wl1271 *wl, int addr, u16 val); 156u16 wl1271_top_reg_read(struct wl1271 *wl, int addr); 157 158int wl1271_set_partition(struct wl1271 *wl, 159 struct wl1271_partition_set *p); 160 161/* Functions from wl1271_main.c */ 162 163int wl1271_register_hw(struct wl1271 *wl); 164void wl1271_unregister_hw(struct wl1271 *wl); 165int wl1271_init_ieee80211(struct wl1271 *wl); 166struct ieee80211_hw *wl1271_alloc_hw(void); 167int wl1271_free_hw(struct wl1271 *wl); 168 169#endif 170