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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 | /* Copyright (C) 2003-2005 SBE, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/slab.h>
#include <linux/io.h>
#include <asm/byteorder.h>
#include <linux/netdevice.h>
#include <linux/delay.h>
#include <linux/hdlc.h>
#include "pmcc4_sysdep.h"
#include "sbecom_inline_linux.h"
#include "libsbew.h"
#include "pmcc4.h"
#if defined(CONFIG_SBE_HDLC_V7) || defined(CONFIG_SBE_WAN256T3_HDLC_V7) || \
defined(CONFIG_SBE_HDLC_V7_MODULE) || defined(CONFIG_SBE_WAN256T3_HDLC_V7_MODULE)
#define _v7_hdlc_ 1
#else
#define _v7_hdlc_ 0
#endif
#if _v7_hdlc_
#define V7(x) (x ## _v7)
extern int hdlc_netif_rx_v7 (hdlc_device *, struct sk_buff *);
extern int register_hdlc_device_v7 (hdlc_device *);
extern int unregister_hdlc_device_v7 (hdlc_device *);
#else
#define V7(x) x
#endif
#ifndef USE_MAX_INT_DELAY
static int dummy = 0;
#endif
extern int cxt1e1_log_level;
extern int drvr_state;
#if 1
u_int32_t
pci_read_32 (u_int32_t *p)
{
#ifdef FLOW_DEBUG
u_int32_t v;
FLUSH_PCI_READ ();
v = le32_to_cpu (*p);
if (cxt1e1_log_level >= LOG_DEBUG)
pr_info("pci_read : %x = %x\n", (u_int32_t) p, v);
return v;
#else
FLUSH_PCI_READ (); /* */
return le32_to_cpu (*p);
#endif
}
void
pci_write_32 (u_int32_t *p, u_int32_t v)
{
#ifdef FLOW_DEBUG
if (cxt1e1_log_level >= LOG_DEBUG)
pr_info("pci_write: %x = %x\n", (u_int32_t) p, v);
#endif
*p = cpu_to_le32 (v);
FLUSH_PCI_WRITE (); /* This routine is called from routines
* which do multiple register writes
* which themselves need flushing between
* writes in order to guarantee write
* ordering. It is less code-cumbersome
* to flush here-in then to investigate
* and code the many other register
* writing routines. */
}
#endif
void
pci_flush_write (ci_t *ci)
{
volatile u_int32_t v;
/* issue a PCI read to flush PCI write thru bridge */
v = *(u_int32_t *) &ci->reg->glcd; /* any address would do */
/*
* return nothing, this just reads PCI bridge interface to flush
* previously written data
*/
}
static void
watchdog_func (unsigned long arg)
{
struct watchdog *wd = (void *) arg;
if (drvr_state != SBE_DRVR_AVAILABLE)
{
if (cxt1e1_log_level >= LOG_MONITOR)
pr_warning("%s: drvr not available (%x)\n", __func__, drvr_state);
return;
}
schedule_work (&wd->work);
mod_timer (&wd->h, jiffies + wd->ticks);
}
int OS_init_watchdog(struct watchdog *wdp, void (*f) (void *), void *c, int usec)
{
wdp->func = f;
wdp->softc = c;
wdp->ticks = (HZ) * (usec / 1000) / 1000;
INIT_WORK(&wdp->work, (void *)f);
init_timer (&wdp->h);
{
ci_t *ci = (ci_t *) c;
wdp->h.data = (unsigned long) &ci->wd;
}
wdp->h.function = watchdog_func;
return 0;
}
void
OS_uwait (int usec, char *description)
{
int tmp;
if (usec >= 1000)
{
mdelay (usec / 1000);
/* now delay residual */
tmp = (usec / 1000) * 1000; /* round */
tmp = usec - tmp; /* residual */
if (tmp)
{ /* wait on residual */
udelay (tmp);
}
} else
{
udelay (usec);
}
}
/* dummy short delay routine called as a subroutine so that compiler
* does not optimize/remove its intent (a short delay)
*/
void
OS_uwait_dummy (void)
{
#ifndef USE_MAX_INT_DELAY
dummy++;
#else
udelay (1);
#endif
}
void
OS_sem_init (void *sem, int state)
{
switch (state)
{
case SEM_TAKEN:
sema_init((struct semaphore *) sem, 0);
break;
case SEM_AVAILABLE:
sema_init((struct semaphore *) sem, 1);
break;
default: /* otherwise, set sem.count to state's
* value */
sema_init (sem, state);
break;
}
}
int
sd_line_is_ok (void *user)
{
struct net_device *ndev = (struct net_device *) user;
return netif_carrier_ok (ndev);
}
void
sd_line_is_up (void *user)
{
struct net_device *ndev = (struct net_device *) user;
netif_carrier_on (ndev);
return;
}
void
sd_line_is_down (void *user)
{
struct net_device *ndev = (struct net_device *) user;
netif_carrier_off (ndev);
return;
}
void
sd_disable_xmit (void *user)
{
struct net_device *dev = (struct net_device *) user;
netif_stop_queue (dev);
return;
}
void
sd_enable_xmit (void *user)
{
struct net_device *dev = (struct net_device *) user;
netif_wake_queue (dev);
return;
}
int
sd_queue_stopped (void *user)
{
struct net_device *ndev = (struct net_device *) user;
return netif_queue_stopped (ndev);
}
void sd_recv_consume(void *token, size_t len, void *user)
{
struct net_device *ndev = user;
struct sk_buff *skb = token;
skb->dev = ndev;
skb_put (skb, len);
skb->protocol = hdlc_type_trans(skb, ndev);
netif_rx(skb);
}
/**
** Read some reserved location w/in the COMET chip as a usable
** VMETRO trigger point or other trace marking event.
**/
#include "comet.h"
extern ci_t *CI; /* dummy pointer to board ZERO's data */
void
VMETRO_TRACE (void *x)
{
u_int32_t y = (u_int32_t) x;
pci_write_32 ((u_int32_t *) &CI->cpldbase->leds, y);
}
void
VMETRO_TRIGGER (ci_t *ci, int x)
{
comet_t *comet;
volatile u_int32_t data;
comet = ci->port[0].cometbase; /* default to COMET # 0 */
switch (x)
{
default:
case 0:
data = pci_read_32 ((u_int32_t *) &comet->__res24); /* 0x90 */
break;
case 1:
data = pci_read_32 ((u_int32_t *) &comet->__res25); /* 0x94 */
break;
case 2:
data = pci_read_32 ((u_int32_t *) &comet->__res26); /* 0x98 */
break;
case 3:
data = pci_read_32 ((u_int32_t *) &comet->__res27); /* 0x9C */
break;
case 4:
data = pci_read_32 ((u_int32_t *) &comet->__res88); /* 0x220 */
break;
case 5:
data = pci_read_32 ((u_int32_t *) &comet->__res89); /* 0x224 */
break;
case 6:
data = pci_read_32 ((u_int32_t *) &comet->__res8A); /* 0x228 */
break;
case 7:
data = pci_read_32 ((u_int32_t *) &comet->__res8B); /* 0x22C */
break;
case 8:
data = pci_read_32 ((u_int32_t *) &comet->__resA0); /* 0x280 */
break;
case 9:
data = pci_read_32 ((u_int32_t *) &comet->__resA1); /* 0x284 */
break;
case 10:
data = pci_read_32 ((u_int32_t *) &comet->__resA2); /* 0x288 */
break;
case 11:
data = pci_read_32 ((u_int32_t *) &comet->__resA3); /* 0x28C */
break;
case 12:
data = pci_read_32 ((u_int32_t *) &comet->__resA4); /* 0x290 */
break;
case 13:
data = pci_read_32 ((u_int32_t *) &comet->__resA5); /* 0x294 */
break;
case 14:
data = pci_read_32 ((u_int32_t *) &comet->__resA6); /* 0x298 */
break;
case 15:
data = pci_read_32 ((u_int32_t *) &comet->__resA7); /* 0x29C */
break;
case 16:
data = pci_read_32 ((u_int32_t *) &comet->__res74); /* 0x1D0 */
break;
case 17:
data = pci_read_32 ((u_int32_t *) &comet->__res75); /* 0x1D4 */
break;
case 18:
data = pci_read_32 ((u_int32_t *) &comet->__res76); /* 0x1D8 */
break;
case 19:
data = pci_read_32 ((u_int32_t *) &comet->__res77); /* 0x1DC */
break;
}
}
/*** End-of-File ***/
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