Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1 | /* |
| 2 | * $Id: sbecom_inline_linux.h,v 1.2 2007/08/15 22:51:35 rickd PMCC4_3_1B $ |
| 3 | */ |
| 4 | |
| 5 | #ifndef _INC_SBECOM_INLNX_H_ |
| 6 | #define _INC_SBECOM_INLNX_H_ |
| 7 | |
| 8 | /*----------------------------------------------------------------------------- |
| 9 | * sbecom_inline_linux.h - SBE common Linux inlined routines |
| 10 | * |
| 11 | * Copyright (C) 2007 One Stop Systems, Inc. |
| 12 | * Copyright (C) 2005 SBE, Inc. |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * This program is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * For further information, contact via email: support@onestopsystems.com |
| 25 | * One Stop Systems, Inc. Escondido, California U.S.A. |
| 26 | *----------------------------------------------------------------------------- |
| 27 | * RCS info: |
| 28 | * RCS revision: $Revision: 1.2 $ |
| 29 | * Last changed on $Date: 2007/08/15 22:51:35 $ |
| 30 | * Changed by $Author: rickd $ |
| 31 | *----------------------------------------------------------------------------- |
| 32 | * $Log: sbecom_inline_linux.h,v $ |
| 33 | * Revision 1.2 2007/08/15 22:51:35 rickd |
| 34 | * Remove duplicate version.h entry. |
| 35 | * |
| 36 | * Revision 1.1 2007/08/15 22:50:29 rickd |
| 37 | * Update linux/config for 2.6.18 and later. |
| 38 | * |
| 39 | * Revision 1.0 2005/09/28 00:10:09 rickd |
| 40 | * Initial revision |
| 41 | * |
| 42 | *----------------------------------------------------------------------------- |
| 43 | */ |
| 44 | |
| 45 | |
| 46 | #if defined (__FreeBSD__) || defined (__NetBSD__) |
| 47 | #include <sys/types.h> |
| 48 | #else |
| 49 | #include <linux/types.h> |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 50 | #if defined(CONFIG_SMP) && ! defined(__SMP__) |
| 51 | #define __SMP__ |
| 52 | #endif |
| 53 | #if defined(CONFIG_MODVERSIONS) && defined(MODULE) && ! defined(MODVERSIONS) |
| 54 | #define MODVERSIONS |
| 55 | #endif |
| 56 | |
| 57 | #ifdef MODULE |
| 58 | #ifdef MODVERSIONS |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 59 | #include <config/modversions.h> |
| 60 | #endif |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 61 | #include <linux/module.h> |
| 62 | #endif |
| 63 | #endif |
| 64 | |
| 65 | #include <linux/kernel.h> /* resolves kmalloc references */ |
| 66 | #include <linux/skbuff.h> /* resolves skb references */ |
| 67 | #include <linux/netdevice.h> /* resolves dev_kree_skb_any */ |
| 68 | #include <asm/byteorder.h> /* resolves cpu_to_le32 */ |
| 69 | |
| 70 | #if 0 |
| 71 | |
| 72 | /*** PORT POINT WARNING |
| 73 | *** |
| 74 | *** Under Linux 2.6 it has been found that compiler is re-ordering |
| 75 | *** in-lined pci_write_32() functions to the detrement of correct |
| 76 | *** hardware setup. Therefore, inlining of PCI accesses has been |
| 77 | *** de-implemented, and subroutine calls have been implemented. |
| 78 | ***/ |
| 79 | |
| 80 | static inline u_int32_t |
| 81 | pci_read_32 (u_int32_t *p) |
| 82 | { |
| 83 | #ifdef FLOW_DEBUG |
| 84 | u_int32_t v; |
| 85 | |
| 86 | FLUSH_PCI_READ (); |
| 87 | v = le32_to_cpu (*p); |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 88 | if (cxt1e1_log_level >= LOG_DEBUG) |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 89 | pr_info("pci_read : %x = %x\n", (u_int32_t) p, v); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 90 | return v; |
| 91 | #else |
| 92 | FLUSH_PCI_READ (); /* */ |
| 93 | return le32_to_cpu (*p); |
| 94 | #endif |
| 95 | } |
| 96 | |
| 97 | static inline void |
| 98 | pci_write_32 (u_int32_t *p, u_int32_t v) |
| 99 | { |
| 100 | #ifdef FLOW_DEBUG |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 101 | if (cxt1e1_log_level >= LOG_DEBUG) |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 102 | pr_info("pci_write: %x = %x\n", (u_int32_t) p, v); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 103 | #endif |
| 104 | *p = cpu_to_le32 (v); |
| 105 | FLUSH_PCI_WRITE (); /* This routine is called from routines |
| 106 | * which do multiple register writes |
| 107 | * which themselves need flushing between |
| 108 | * writes in order to guarantee write |
| 109 | * ordering. It is less code-cumbersome |
| 110 | * to flush here-in then to investigate |
| 111 | * and code the many other register |
| 112 | * writing routines. */ |
| 113 | } |
| 114 | #else |
| 115 | /* forward reference */ |
| 116 | u_int32_t pci_read_32 (u_int32_t *p); |
| 117 | void pci_write_32 (u_int32_t *p, u_int32_t v); |
| 118 | |
| 119 | #endif |
| 120 | |
| 121 | |
| 122 | /* |
| 123 | * system dependent callbacks |
| 124 | */ |
| 125 | |
| 126 | /**********/ |
| 127 | /* malloc */ |
| 128 | /**********/ |
| 129 | |
| 130 | static inline void * |
| 131 | OS_kmalloc (size_t size) |
| 132 | { |
| 133 | char *ptr = kmalloc (size, GFP_KERNEL | GFP_DMA); |
| 134 | |
| 135 | if (ptr) |
| 136 | memset (ptr, 0, size); |
| 137 | return ptr; |
| 138 | } |
| 139 | |
| 140 | static inline void |
| 141 | OS_kfree (void *x) |
| 142 | { |
| 143 | kfree (x); |
| 144 | } |
| 145 | |
| 146 | |
| 147 | /****************/ |
| 148 | /* memory token */ |
| 149 | /****************/ |
| 150 | |
| 151 | static inline void * |
| 152 | OS_mem_token_alloc (size_t size) |
| 153 | { |
| 154 | struct sk_buff *skb; |
| 155 | |
| 156 | skb = dev_alloc_skb (size); |
| 157 | if (!skb) |
| 158 | { |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 159 | //pr_warning("no mem in OS_mem_token_alloc !\n"); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 160 | return 0; |
| 161 | } |
| 162 | return skb; |
| 163 | } |
| 164 | |
| 165 | |
| 166 | static inline void |
| 167 | OS_mem_token_free (void *token) |
| 168 | { |
| 169 | dev_kfree_skb_any (token); |
| 170 | } |
| 171 | |
| 172 | |
| 173 | static inline void |
| 174 | OS_mem_token_free_irq (void *token) |
| 175 | { |
| 176 | dev_kfree_skb_irq (token); |
| 177 | } |
| 178 | |
| 179 | |
| 180 | static inline void * |
| 181 | OS_mem_token_data (void *token) |
| 182 | { |
| 183 | return ((struct sk_buff *) token)->data; |
| 184 | } |
| 185 | |
| 186 | |
| 187 | static inline void * |
| 188 | OS_mem_token_next (void *token) |
| 189 | { |
| 190 | return 0; |
| 191 | } |
| 192 | |
| 193 | |
| 194 | static inline int |
| 195 | OS_mem_token_len (void *token) |
| 196 | { |
| 197 | return ((struct sk_buff *) token)->len; |
| 198 | } |
| 199 | |
| 200 | |
| 201 | static inline int |
| 202 | OS_mem_token_tlen (void *token) |
| 203 | { |
| 204 | return ((struct sk_buff *) token)->len; |
| 205 | } |
| 206 | |
| 207 | |
| 208 | /***************************************/ |
| 209 | /* virtual to physical addr conversion */ |
| 210 | /***************************************/ |
| 211 | |
| 212 | static inline u_long |
| 213 | OS_phystov (void *addr) |
| 214 | { |
| 215 | return (u_long) __va (addr); |
| 216 | } |
| 217 | |
| 218 | |
| 219 | static inline u_long |
| 220 | OS_vtophys (void *addr) |
| 221 | { |
| 222 | return __pa (addr); |
| 223 | } |
| 224 | |
| 225 | |
| 226 | /**********/ |
| 227 | /* semops */ |
| 228 | /**********/ |
| 229 | |
| 230 | void OS_sem_init (void *, int); |
| 231 | |
| 232 | |
| 233 | static inline void |
| 234 | OS_sem_free (void *sem) |
| 235 | { |
| 236 | /* |
| 237 | * NOOP - since semaphores structures predeclared w/in structures, no |
| 238 | * longer malloc'd |
| 239 | */ |
| 240 | } |
| 241 | |
| 242 | #define SD_SEM_TAKE(sem,desc) down(sem) |
| 243 | #define SD_SEM_GIVE(sem) up(sem) |
| 244 | #define SEM_AVAILABLE 1 |
| 245 | #define SEM_TAKEN 0 |
| 246 | |
| 247 | |
| 248 | /**********************/ |
| 249 | /* watchdog functions */ |
| 250 | /**********************/ |
| 251 | |
| 252 | struct watchdog |
| 253 | { |
| 254 | struct timer_list h; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 255 | struct work_struct work; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 256 | void *softc; |
| 257 | void (*func) (void *softc); |
| 258 | int ticks; |
| 259 | int init_tq; |
| 260 | }; |
| 261 | |
| 262 | |
| 263 | static inline int |
| 264 | OS_start_watchdog (struct watchdog * wd) |
| 265 | { |
| 266 | wd->h.expires = jiffies + wd->ticks; |
| 267 | add_timer (&wd->h); |
| 268 | return 0; |
| 269 | } |
| 270 | |
| 271 | |
| 272 | static inline int |
| 273 | OS_stop_watchdog (struct watchdog * wd) |
| 274 | { |
| 275 | del_timer_sync (&wd->h); |
| 276 | return 0; |
| 277 | } |
| 278 | |
| 279 | |
| 280 | static inline int |
| 281 | OS_free_watchdog (struct watchdog * wd) |
| 282 | { |
| 283 | OS_stop_watchdog (wd); |
| 284 | OS_kfree (wd); |
| 285 | return 0; |
| 286 | } |
| 287 | |
| 288 | |
| 289 | /* sleep in microseconds */ |
| 290 | void OS_uwait (int usec, char *description); |
| 291 | void OS_uwait_dummy (void); |
| 292 | |
| 293 | |
| 294 | /* watchdog functions */ |
| 295 | int OS_init_watchdog(struct watchdog *wdp, void (*f) (void *), void *ci, int usec); |
| 296 | |
| 297 | |
| 298 | #endif /*** _INC_SBECOM_INLNX_H_ ***/ |