Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Reinette Chatre | 01f8162 | 2009-01-08 10:20:02 -0800 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved. |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 4 | * |
| 5 | * Portions of this file are derived from the ipw3945 project. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms of version 2 of the GNU General Public License as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 14 | * more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License along with |
| 17 | * this program; if not, write to the Free Software Foundation, Inc., |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 19 | * |
| 20 | * The full GNU General Public License is included in this distribution in the |
| 21 | * file called LICENSE. |
| 22 | * |
| 23 | * Contact Information: |
Winkler, Tomas | 759ef89 | 2008-12-09 11:28:58 -0800 | [diff] [blame] | 24 | * Intel Linux Wireless <ilw@linux.intel.com> |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 25 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 26 | * |
| 27 | *****************************************************************************/ |
| 28 | |
| 29 | #ifndef __iwl_io_h__ |
| 30 | #define __iwl_io_h__ |
| 31 | |
| 32 | #include <linux/io.h> |
| 33 | |
| 34 | #include "iwl-debug.h" |
| 35 | |
| 36 | /* |
| 37 | * IO, register, and NIC memory access functions |
| 38 | * |
| 39 | * NOTE on naming convention and macro usage for these |
| 40 | * |
| 41 | * A single _ prefix before a an access function means that no state |
| 42 | * check or debug information is printed when that function is called. |
| 43 | * |
| 44 | * A double __ prefix before an access function means that state is checked |
Tomas Winkler | 775ea37 | 2008-03-25 16:33:38 -0700 | [diff] [blame] | 45 | * and the current line number and caller function name are printed in addition |
| 46 | * to any other debug output. |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 47 | * |
| 48 | * The non-prefixed name is the #define that maps the caller into a |
Tomas Winkler | 775ea37 | 2008-03-25 16:33:38 -0700 | [diff] [blame] | 49 | * #define that provides the caller's name and __LINE__ to the double |
| 50 | * prefix version. |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 51 | * |
| 52 | * If you wish to call the function without any debug or state checking, |
| 53 | * you should use the single _ prefix version (as is used by dependent IO |
| 54 | * routines, for example _iwl_read_direct32 calls the non-check version of |
| 55 | * _iwl_read32.) |
| 56 | * |
| 57 | * These declarations are *extremely* useful in quickly isolating code deltas |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 58 | * which result in misconfiguration of the hardware I/O. In combination with |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 59 | * git-bisect and the IO debug level you can quickly determine the specific |
| 60 | * commit which breaks the IO sequence to the hardware. |
| 61 | * |
| 62 | */ |
| 63 | |
Tomas Winkler | f5efde3 | 2008-09-03 11:26:34 +0800 | [diff] [blame] | 64 | #define _iwl_write32(priv, ofs, val) iowrite32((val), (priv)->hw_base + (ofs)) |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 65 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 66 | static inline void __iwl_write32(const char *f, u32 l, struct iwl_priv *priv, |
| 67 | u32 ofs, u32 val) |
| 68 | { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 69 | IWL_DEBUG_IO(priv, "write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 70 | _iwl_write32(priv, ofs, val); |
| 71 | } |
| 72 | #define iwl_write32(priv, ofs, val) \ |
| 73 | __iwl_write32(__FILE__, __LINE__, priv, ofs, val) |
| 74 | #else |
| 75 | #define iwl_write32(priv, ofs, val) _iwl_write32(priv, ofs, val) |
| 76 | #endif |
| 77 | |
Tomas Winkler | f5efde3 | 2008-09-03 11:26:34 +0800 | [diff] [blame] | 78 | #define _iwl_read32(priv, ofs) ioread32((priv)->hw_base + (ofs)) |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 79 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 80 | static inline u32 __iwl_read32(char *f, u32 l, struct iwl_priv *priv, u32 ofs) |
| 81 | { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 82 | IWL_DEBUG_IO(priv, "read_direct32(0x%08X) - %s %d\n", ofs, f, l); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 83 | return _iwl_read32(priv, ofs); |
| 84 | } |
| 85 | #define iwl_read32(priv, ofs) __iwl_read32(__FILE__, __LINE__, priv, ofs) |
| 86 | #else |
| 87 | #define iwl_read32(p, o) _iwl_read32(p, o) |
| 88 | #endif |
| 89 | |
Wu, Fengguang | 4087f6f | 2008-12-17 16:52:32 +0800 | [diff] [blame] | 90 | #define IWL_POLL_INTERVAL 10 /* microseconds */ |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 91 | static inline int _iwl_poll_bit(struct iwl_priv *priv, u32 addr, |
| 92 | u32 bits, u32 mask, int timeout) |
| 93 | { |
Wu, Fengguang | 4087f6f | 2008-12-17 16:52:32 +0800 | [diff] [blame] | 94 | int t = 0; |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 95 | |
| 96 | do { |
| 97 | if ((_iwl_read32(priv, addr) & mask) == (bits & mask)) |
Wu, Fengguang | 4087f6f | 2008-12-17 16:52:32 +0800 | [diff] [blame] | 98 | return t; |
| 99 | udelay(IWL_POLL_INTERVAL); |
| 100 | t += IWL_POLL_INTERVAL; |
| 101 | } while (t < timeout); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 102 | |
| 103 | return -ETIMEDOUT; |
| 104 | } |
| 105 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 106 | static inline int __iwl_poll_bit(const char *f, u32 l, |
| 107 | struct iwl_priv *priv, u32 addr, |
| 108 | u32 bits, u32 mask, int timeout) |
| 109 | { |
| 110 | int ret = _iwl_poll_bit(priv, addr, bits, mask, timeout); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 111 | IWL_DEBUG_IO(priv, "poll_bit(0x%08X, 0x%08X, 0x%08X) - %s- %s %d\n", |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 112 | addr, bits, mask, |
Abhijeet Kolekar | c305606 | 2008-11-12 13:14:08 -0800 | [diff] [blame] | 113 | unlikely(ret == -ETIMEDOUT) ? "timeout" : "", f, l); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 114 | return ret; |
| 115 | } |
| 116 | #define iwl_poll_bit(priv, addr, bits, mask, timeout) \ |
| 117 | __iwl_poll_bit(__FILE__, __LINE__, priv, addr, bits, mask, timeout) |
| 118 | #else |
| 119 | #define iwl_poll_bit(p, a, b, m, t) _iwl_poll_bit(p, a, b, m, t) |
| 120 | #endif |
| 121 | |
| 122 | static inline void _iwl_set_bit(struct iwl_priv *priv, u32 reg, u32 mask) |
| 123 | { |
| 124 | _iwl_write32(priv, reg, _iwl_read32(priv, reg) | mask); |
| 125 | } |
| 126 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 127 | static inline void __iwl_set_bit(const char *f, u32 l, |
| 128 | struct iwl_priv *priv, u32 reg, u32 mask) |
| 129 | { |
| 130 | u32 val = _iwl_read32(priv, reg) | mask; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 131 | IWL_DEBUG_IO(priv, "set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 132 | _iwl_write32(priv, reg, val); |
| 133 | } |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 134 | static inline void iwl_set_bit(struct iwl_priv *p, u32 r, u32 m) |
| 135 | { |
| 136 | unsigned long reg_flags; |
| 137 | |
| 138 | spin_lock_irqsave(&p->reg_lock, reg_flags); |
| 139 | __iwl_set_bit(__FILE__, __LINE__, p, r, m); |
| 140 | spin_unlock_irqrestore(&p->reg_lock, reg_flags); |
| 141 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 142 | #else |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 143 | static inline void iwl_set_bit(struct iwl_priv *p, u32 r, u32 m) |
| 144 | { |
| 145 | unsigned long reg_flags; |
| 146 | |
| 147 | spin_lock_irqsave(&p->reg_lock, reg_flags); |
| 148 | _iwl_set_bit(p, r, m); |
| 149 | spin_unlock_irqrestore(&p->reg_lock, reg_flags); |
| 150 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 151 | #endif |
| 152 | |
| 153 | static inline void _iwl_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask) |
| 154 | { |
| 155 | _iwl_write32(priv, reg, _iwl_read32(priv, reg) & ~mask); |
| 156 | } |
| 157 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 158 | static inline void __iwl_clear_bit(const char *f, u32 l, |
| 159 | struct iwl_priv *priv, u32 reg, u32 mask) |
| 160 | { |
| 161 | u32 val = _iwl_read32(priv, reg) & ~mask; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 162 | IWL_DEBUG_IO(priv, "clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 163 | _iwl_write32(priv, reg, val); |
| 164 | } |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 165 | static inline void iwl_clear_bit(struct iwl_priv *p, u32 r, u32 m) |
| 166 | { |
| 167 | unsigned long reg_flags; |
| 168 | |
| 169 | spin_lock_irqsave(&p->reg_lock, reg_flags); |
| 170 | __iwl_clear_bit(__FILE__, __LINE__, p, r, m); |
| 171 | spin_unlock_irqrestore(&p->reg_lock, reg_flags); |
| 172 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 173 | #else |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 174 | static inline void iwl_clear_bit(struct iwl_priv *p, u32 r, u32 m) |
| 175 | { |
| 176 | unsigned long reg_flags; |
| 177 | |
| 178 | spin_lock_irqsave(&p->reg_lock, reg_flags); |
| 179 | _iwl_clear_bit(p, r, m); |
| 180 | spin_unlock_irqrestore(&p->reg_lock, reg_flags); |
| 181 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 182 | #endif |
| 183 | |
| 184 | static inline int _iwl_grab_nic_access(struct iwl_priv *priv) |
| 185 | { |
| 186 | int ret; |
Reinette Chatre | 18d426c | 2009-03-11 11:18:00 -0700 | [diff] [blame] | 187 | u32 val; |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 188 | |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 189 | /* this bit wakes up the NIC */ |
| 190 | _iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
| 191 | ret = _iwl_poll_bit(priv, CSR_GP_CNTRL, |
| 192 | CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN, |
| 193 | (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY | |
Abbas, Mohamed | e9414b6 | 2009-01-20 21:33:55 -0800 | [diff] [blame] | 194 | CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 195 | if (ret < 0) { |
Reinette Chatre | 18d426c | 2009-03-11 11:18:00 -0700 | [diff] [blame] | 196 | val = _iwl_read32(priv, CSR_GP_CNTRL); |
| 197 | IWL_ERR(priv, "MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 198 | _iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_FORCE_NMI); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 199 | return -EIO; |
| 200 | } |
| 201 | |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 202 | return 0; |
| 203 | } |
| 204 | |
| 205 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 206 | static inline int __iwl_grab_nic_access(const char *f, u32 l, |
| 207 | struct iwl_priv *priv) |
| 208 | { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 209 | IWL_DEBUG_IO(priv, "grabbing nic access - %s %d\n", f, l); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 210 | return _iwl_grab_nic_access(priv); |
| 211 | } |
| 212 | #define iwl_grab_nic_access(priv) \ |
| 213 | __iwl_grab_nic_access(__FILE__, __LINE__, priv) |
| 214 | #else |
| 215 | #define iwl_grab_nic_access(priv) \ |
| 216 | _iwl_grab_nic_access(priv) |
| 217 | #endif |
| 218 | |
| 219 | static inline void _iwl_release_nic_access(struct iwl_priv *priv) |
| 220 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 221 | _iwl_clear_bit(priv, CSR_GP_CNTRL, |
| 222 | CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 223 | } |
| 224 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 225 | static inline void __iwl_release_nic_access(const char *f, u32 l, |
| 226 | struct iwl_priv *priv) |
| 227 | { |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 228 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 229 | IWL_DEBUG_IO(priv, "releasing nic access - %s %d\n", f, l); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 230 | _iwl_release_nic_access(priv); |
| 231 | } |
| 232 | #define iwl_release_nic_access(priv) \ |
| 233 | __iwl_release_nic_access(__FILE__, __LINE__, priv) |
| 234 | #else |
| 235 | #define iwl_release_nic_access(priv) \ |
| 236 | _iwl_release_nic_access(priv) |
| 237 | #endif |
| 238 | |
| 239 | static inline u32 _iwl_read_direct32(struct iwl_priv *priv, u32 reg) |
| 240 | { |
| 241 | return _iwl_read32(priv, reg); |
| 242 | } |
| 243 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 244 | static inline u32 __iwl_read_direct32(const char *f, u32 l, |
| 245 | struct iwl_priv *priv, u32 reg) |
| 246 | { |
| 247 | u32 value = _iwl_read_direct32(priv, reg); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 248 | IWL_DEBUG_IO(priv, "read_direct32(0x%4X) = 0x%08x - %s %d \n", reg, value, |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 249 | f, l); |
| 250 | return value; |
| 251 | } |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 252 | static inline u32 iwl_read_direct32(struct iwl_priv *priv, u32 reg) |
| 253 | { |
| 254 | u32 value; |
| 255 | unsigned long reg_flags; |
| 256 | |
| 257 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 258 | iwl_grab_nic_access(priv); |
| 259 | value = __iwl_read_direct32(__FILE__, __LINE__, priv, reg); |
| 260 | iwl_release_nic_access(priv); |
| 261 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
| 262 | return value; |
| 263 | } |
| 264 | |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 265 | #else |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 266 | static inline u32 iwl_read_direct32(struct iwl_priv *priv, u32 reg) |
| 267 | { |
| 268 | u32 value; |
| 269 | unsigned long reg_flags; |
| 270 | |
| 271 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 272 | iwl_grab_nic_access(priv); |
| 273 | value = _iwl_read_direct32(priv, reg); |
| 274 | iwl_release_nic_access(priv); |
| 275 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
| 276 | return value; |
| 277 | |
| 278 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 279 | #endif |
| 280 | |
| 281 | static inline void _iwl_write_direct32(struct iwl_priv *priv, |
| 282 | u32 reg, u32 value) |
| 283 | { |
| 284 | _iwl_write32(priv, reg, value); |
| 285 | } |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 286 | static inline void iwl_write_direct32(struct iwl_priv *priv, u32 reg, u32 value) |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 287 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 288 | unsigned long reg_flags; |
| 289 | |
| 290 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 291 | if (!iwl_grab_nic_access(priv)) { |
| 292 | _iwl_write_direct32(priv, reg, value); |
| 293 | iwl_release_nic_access(priv); |
| 294 | } |
| 295 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 296 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 297 | |
| 298 | static inline void iwl_write_reg_buf(struct iwl_priv *priv, |
| 299 | u32 reg, u32 len, u32 *values) |
| 300 | { |
| 301 | u32 count = sizeof(u32); |
| 302 | |
| 303 | if ((priv != NULL) && (values != NULL)) { |
| 304 | for (; 0 < len; len -= count, reg += count, values++) |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 305 | iwl_write_direct32(priv, reg, *values); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 306 | } |
| 307 | } |
| 308 | |
Zhu, Yi | 73d7b5a | 2008-12-05 07:58:40 -0800 | [diff] [blame] | 309 | static inline int _iwl_poll_direct_bit(struct iwl_priv *priv, u32 addr, |
| 310 | u32 mask, int timeout) |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 311 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 312 | int t = 0; |
| 313 | |
| 314 | do { |
| 315 | if ((iwl_read_direct32(priv, addr) & mask) == mask) |
| 316 | return t; |
| 317 | udelay(IWL_POLL_INTERVAL); |
| 318 | t += IWL_POLL_INTERVAL; |
| 319 | } while (t < timeout); |
| 320 | |
| 321 | return -ETIMEDOUT; |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 325 | static inline int __iwl_poll_direct_bit(const char *f, u32 l, |
| 326 | struct iwl_priv *priv, |
| 327 | u32 addr, u32 mask, int timeout) |
| 328 | { |
| 329 | int ret = _iwl_poll_direct_bit(priv, addr, mask, timeout); |
| 330 | |
| 331 | if (unlikely(ret == -ETIMEDOUT)) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 332 | IWL_DEBUG_IO(priv, "poll_direct_bit(0x%08X, 0x%08X) - " |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 333 | "timedout - %s %d\n", addr, mask, f, l); |
| 334 | else |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 335 | IWL_DEBUG_IO(priv, "poll_direct_bit(0x%08X, 0x%08X) = 0x%08X " |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 336 | "- %s %d\n", addr, mask, ret, f, l); |
| 337 | return ret; |
| 338 | } |
| 339 | #define iwl_poll_direct_bit(priv, addr, mask, timeout) \ |
| 340 | __iwl_poll_direct_bit(__FILE__, __LINE__, priv, addr, mask, timeout) |
| 341 | #else |
| 342 | #define iwl_poll_direct_bit _iwl_poll_direct_bit |
| 343 | #endif |
| 344 | |
| 345 | static inline u32 _iwl_read_prph(struct iwl_priv *priv, u32 reg) |
| 346 | { |
| 347 | _iwl_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24)); |
Zhu, Yi | a8ec42c | 2008-12-05 07:58:41 -0800 | [diff] [blame] | 348 | rmb(); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 349 | return _iwl_read_direct32(priv, HBUS_TARG_PRPH_RDAT); |
| 350 | } |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 351 | static inline u32 iwl_read_prph(struct iwl_priv *priv, u32 reg) |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 352 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 353 | unsigned long reg_flags; |
| 354 | u32 val; |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 355 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 356 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 357 | iwl_grab_nic_access(priv); |
| 358 | val = _iwl_read_prph(priv, reg); |
| 359 | iwl_release_nic_access(priv); |
| 360 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
| 361 | return val; |
| 362 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 363 | |
| 364 | static inline void _iwl_write_prph(struct iwl_priv *priv, |
| 365 | u32 addr, u32 val) |
| 366 | { |
| 367 | _iwl_write_direct32(priv, HBUS_TARG_PRPH_WADDR, |
| 368 | ((addr & 0x0000FFFF) | (3 << 24))); |
Zhu, Yi | a8ec42c | 2008-12-05 07:58:41 -0800 | [diff] [blame] | 369 | wmb(); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 370 | _iwl_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val); |
| 371 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 372 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 373 | static inline void iwl_write_prph(struct iwl_priv *priv, u32 addr, u32 val) |
| 374 | { |
| 375 | unsigned long reg_flags; |
| 376 | |
| 377 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 378 | if (!iwl_grab_nic_access(priv)) { |
| 379 | _iwl_write_prph(priv, addr, val); |
| 380 | iwl_release_nic_access(priv); |
| 381 | } |
| 382 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
| 383 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 384 | |
| 385 | #define _iwl_set_bits_prph(priv, reg, mask) \ |
| 386 | _iwl_write_prph(priv, reg, (_iwl_read_prph(priv, reg) | mask)) |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 387 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 388 | static inline void iwl_set_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask) |
| 389 | { |
| 390 | unsigned long reg_flags; |
| 391 | |
| 392 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 393 | iwl_grab_nic_access(priv); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 394 | _iwl_set_bits_prph(priv, reg, mask); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 395 | iwl_release_nic_access(priv); |
| 396 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 397 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 398 | |
| 399 | #define _iwl_set_bits_mask_prph(priv, reg, bits, mask) \ |
| 400 | _iwl_write_prph(priv, reg, ((_iwl_read_prph(priv, reg) & mask) | bits)) |
| 401 | |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 402 | static inline void iwl_set_bits_mask_prph(struct iwl_priv *priv, u32 reg, |
| 403 | u32 bits, u32 mask) |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 404 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 405 | unsigned long reg_flags; |
| 406 | |
| 407 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 408 | iwl_grab_nic_access(priv); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 409 | _iwl_set_bits_mask_prph(priv, reg, bits, mask); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 410 | iwl_release_nic_access(priv); |
| 411 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 412 | } |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 413 | |
| 414 | static inline void iwl_clear_bits_prph(struct iwl_priv |
| 415 | *priv, u32 reg, u32 mask) |
| 416 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 417 | unsigned long reg_flags; |
| 418 | u32 val; |
| 419 | |
| 420 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 421 | iwl_grab_nic_access(priv); |
| 422 | val = _iwl_read_prph(priv, reg); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 423 | _iwl_write_prph(priv, reg, (val & ~mask)); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 424 | iwl_release_nic_access(priv); |
| 425 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | static inline u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr) |
| 429 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 430 | unsigned long reg_flags; |
| 431 | u32 value; |
| 432 | |
| 433 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 434 | iwl_grab_nic_access(priv); |
| 435 | |
| 436 | _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr); |
Zhu, Yi | a8ec42c | 2008-12-05 07:58:41 -0800 | [diff] [blame] | 437 | rmb(); |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 438 | value = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
| 439 | |
| 440 | iwl_release_nic_access(priv); |
| 441 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
| 442 | return value; |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 443 | } |
| 444 | |
| 445 | static inline void iwl_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val) |
| 446 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 447 | unsigned long reg_flags; |
| 448 | |
| 449 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 450 | if (!iwl_grab_nic_access(priv)) { |
| 451 | _iwl_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr); |
| 452 | wmb(); |
| 453 | _iwl_write_direct32(priv, HBUS_TARG_MEM_WDAT, val); |
| 454 | iwl_release_nic_access(priv); |
| 455 | } |
| 456 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 457 | } |
| 458 | |
| 459 | static inline void iwl_write_targ_mem_buf(struct iwl_priv *priv, u32 addr, |
| 460 | u32 len, u32 *values) |
| 461 | { |
Mohamed Abbas | a8b50a0 | 2009-05-22 11:01:47 -0700 | [diff] [blame] | 462 | unsigned long reg_flags; |
| 463 | |
| 464 | spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| 465 | if (!iwl_grab_nic_access(priv)) { |
| 466 | _iwl_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr); |
| 467 | wmb(); |
| 468 | for (; 0 < len; len -= sizeof(u32), values++) |
| 469 | _iwl_write_direct32(priv, HBUS_TARG_MEM_WDAT, *values); |
| 470 | |
| 471 | iwl_release_nic_access(priv); |
| 472 | } |
| 473 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
Tomas Winkler | 3395f6e | 2008-03-25 16:33:37 -0700 | [diff] [blame] | 474 | } |
| 475 | #endif |