Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1 | /* Copyright (C) 2007-2008 One Stop Systems |
| 2 | * Copyright (C) 2003-2006 SBE, Inc. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | */ |
| 14 | |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 15 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 16 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 17 | #include <linux/types.h> |
| 18 | #include <linux/netdevice.h> |
Paul Gortmaker | 4529623 | 2011-08-30 17:50:46 -0400 | [diff] [blame] | 19 | #include <linux/module.h> |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 20 | #include <linux/hdlc.h> |
| 21 | #include <linux/if_arp.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <asm/uaccess.h> |
| 24 | #include <linux/rtnetlink.h> |
| 25 | #include <linux/skbuff.h> |
| 26 | #include "pmcc4_sysdep.h" |
| 27 | #include "sbecom_inline_linux.h" |
| 28 | #include "libsbew.h" |
| 29 | #include "pmcc4.h" |
| 30 | #include "pmcc4_ioctls.h" |
| 31 | #include "pmcc4_private.h" |
| 32 | #include "sbeproc.h" |
| 33 | |
| 34 | /***************************************************************************************** |
| 35 | * Error out early if we have compiler trouble. |
| 36 | * |
| 37 | * (This section is included from the kernel's init/main.c as a friendly |
| 38 | * spiderman recommendation...) |
| 39 | * |
| 40 | * Versions of gcc older than that listed below may actually compile and link |
| 41 | * okay, but the end product can have subtle run time bugs. To avoid associated |
| 42 | * bogus bug reports, we flatly refuse to compile with a gcc that is known to be |
| 43 | * too old from the very beginning. |
| 44 | */ |
| 45 | #if (__GNUC__ < 3) || (__GNUC__ == 3 && __GNUC_MINOR__ < 2) |
| 46 | #error Sorry, your GCC is too old. It builds incorrect kernels. |
| 47 | #endif |
| 48 | |
| 49 | #if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0 |
| 50 | #warning gcc-4.1.0 is known to miscompile the kernel. A different compiler version is recommended. |
| 51 | #endif |
| 52 | |
| 53 | /*****************************************************************************************/ |
| 54 | |
| 55 | #ifdef SBE_INCLUDE_SYMBOLS |
| 56 | #define STATIC |
| 57 | #else |
| 58 | #define STATIC static |
| 59 | #endif |
| 60 | |
| 61 | #define CHANNAME "hdlc" |
| 62 | |
| 63 | /*******************************************************************/ |
| 64 | /* forward references */ |
| 65 | status_t c4_chan_work_init (mpi_t *, mch_t *); |
| 66 | void musycc_wq_chan_restart (void *); |
| 67 | status_t __init c4_init (ci_t *, u_char *, u_char *); |
| 68 | status_t __init c4_init2 (ci_t *); |
| 69 | ci_t *__init c4_new (void *); |
| 70 | int __init c4hw_attach_all (void); |
| 71 | void __init hdw_sn_get (hdw_info_t *, int); |
| 72 | |
| 73 | #ifdef CONFIG_SBE_PMCC4_NCOMM |
| 74 | irqreturn_t c4_ebus_intr_th_handler (void *); |
| 75 | |
| 76 | #endif |
| 77 | int c4_frame_rw (ci_t *, struct sbecom_port_param *); |
| 78 | status_t c4_get_port (ci_t *, int); |
| 79 | int c4_loop_port (ci_t *, int, u_int8_t); |
| 80 | int c4_musycc_rw (ci_t *, struct c4_musycc_param *); |
| 81 | int c4_new_chan (ci_t *, int, int, void *); |
| 82 | status_t c4_set_port (ci_t *, int); |
| 83 | int c4_pld_rw (ci_t *, struct sbecom_port_param *); |
| 84 | void cleanup_devs (void); |
| 85 | void cleanup_ioremap (void); |
| 86 | status_t musycc_chan_down (ci_t *, int); |
| 87 | irqreturn_t musycc_intr_th_handler (void *); |
| 88 | int musycc_start_xmit (ci_t *, int, void *); |
| 89 | |
| 90 | extern char pmcc4_OSSI_release[]; |
| 91 | extern ci_t *CI; |
| 92 | extern struct s_hdw_info hdw_info[]; |
| 93 | |
| 94 | #if defined(CONFIG_SBE_HDLC_V7) || defined(CONFIG_SBE_WAN256T3_HDLC_V7) || \ |
| 95 | defined(CONFIG_SBE_HDLC_V7_MODULE) || defined(CONFIG_SBE_WAN256T3_HDLC_V7_MODULE) |
| 96 | #define _v7_hdlc_ 1 |
| 97 | #else |
| 98 | #define _v7_hdlc_ 0 |
| 99 | #endif |
| 100 | |
| 101 | #if _v7_hdlc_ |
| 102 | #define V7(x) (x ## _v7) |
| 103 | extern int hdlc_netif_rx_v7 (hdlc_device *, struct sk_buff *); |
| 104 | extern int register_hdlc_device_v7 (hdlc_device *); |
| 105 | extern int unregister_hdlc_device_v7 (hdlc_device *); |
| 106 | |
| 107 | #else |
| 108 | #define V7(x) x |
| 109 | #endif |
| 110 | |
| 111 | int error_flag; /* module load error reporting */ |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 112 | int cxt1e1_log_level = LOG_ERROR; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 113 | int log_level_default = LOG_ERROR; |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 114 | module_param(cxt1e1_log_level, int, 0444); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 115 | |
Bob Beers | c694ed8 | 2010-10-16 18:06:36 -0400 | [diff] [blame] | 116 | int cxt1e1_max_mru = MUSYCC_MRU; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 117 | int max_mru_default = MUSYCC_MRU; |
Bob Beers | c694ed8 | 2010-10-16 18:06:36 -0400 | [diff] [blame] | 118 | module_param(cxt1e1_max_mru, int, 0444); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 119 | |
Bob Beers | c694ed8 | 2010-10-16 18:06:36 -0400 | [diff] [blame] | 120 | int cxt1e1_max_mtu = MUSYCC_MTU; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 121 | int max_mtu_default = MUSYCC_MTU; |
Bob Beers | c694ed8 | 2010-10-16 18:06:36 -0400 | [diff] [blame] | 122 | module_param(cxt1e1_max_mtu, int, 0444); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 123 | |
| 124 | int max_txdesc_used = MUSYCC_TXDESC_MIN; |
| 125 | int max_txdesc_default = MUSYCC_TXDESC_MIN; |
| 126 | module_param(max_txdesc_used, int, 0444); |
| 127 | |
| 128 | int max_rxdesc_used = MUSYCC_RXDESC_MIN; |
| 129 | int max_rxdesc_default = MUSYCC_RXDESC_MIN; |
| 130 | module_param(max_rxdesc_used, int, 0444); |
| 131 | |
| 132 | /****************************************************************************/ |
| 133 | /****************************************************************************/ |
| 134 | /****************************************************************************/ |
| 135 | |
| 136 | void * |
| 137 | getuserbychan (int channum) |
| 138 | { |
| 139 | mch_t *ch; |
| 140 | |
| 141 | ch = c4_find_chan (channum); |
| 142 | return ch ? ch->user : 0; |
| 143 | } |
| 144 | |
| 145 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 146 | char * |
| 147 | get_hdlc_name (hdlc_device * hdlc) |
| 148 | { |
| 149 | struct c4_priv *priv = hdlc->priv; |
| 150 | struct net_device *dev = getuserbychan (priv->channum); |
| 151 | |
| 152 | return dev->name; |
| 153 | } |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 154 | |
| 155 | |
| 156 | static status_t |
| 157 | mkret (int bsd) |
| 158 | { |
| 159 | if (bsd > 0) |
| 160 | return -bsd; |
| 161 | else |
| 162 | return bsd; |
| 163 | } |
| 164 | |
| 165 | /***************************************************************************/ |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 166 | #include <linux/workqueue.h> |
| 167 | |
| 168 | /*** |
| 169 | * One workqueue (wq) per port (since musycc allows simultaneous group |
| 170 | * commands), with individual data for each channel: |
| 171 | * |
| 172 | * mpi_t -> struct workqueue_struct *wq_port; (dynamically allocated using |
| 173 | * create_workqueue()) |
| 174 | * |
| 175 | * With work structure (work) statically allocated for each channel: |
| 176 | * |
| 177 | * mch_t -> struct work_struct ch_work; (statically allocated using ???) |
| 178 | * |
| 179 | ***/ |
| 180 | |
| 181 | |
| 182 | /* |
| 183 | * Called by the start transmit routine when a channel TX_ENABLE is to be |
| 184 | * issued. This queues the transmission start request among other channels |
| 185 | * within a port's group. |
| 186 | */ |
| 187 | void |
| 188 | c4_wk_chan_restart (mch_t * ch) |
| 189 | { |
| 190 | mpi_t *pi = ch->up; |
| 191 | |
| 192 | #ifdef RLD_RESTART_DEBUG |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 193 | pr_info(">> %s: queueing Port %d Chan %d, mch_t @ %p\n", |
| 194 | __func__, pi->portnum, ch->channum, ch); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 195 | #endif |
| 196 | |
| 197 | /* create new entry w/in workqueue for this channel and let'er rip */ |
| 198 | |
| 199 | /** queue_work (struct workqueue_struct *queue, |
| 200 | ** struct work_struct *work); |
| 201 | **/ |
| 202 | queue_work (pi->wq_port, &ch->ch_work); |
| 203 | } |
| 204 | |
| 205 | status_t |
| 206 | c4_wk_chan_init (mpi_t * pi, mch_t * ch) |
| 207 | { |
| 208 | /* |
| 209 | * this will be used to restart a stopped channel |
| 210 | */ |
| 211 | |
| 212 | /** INIT_WORK (struct work_struct *work, |
| 213 | ** void (*function)(void *), |
| 214 | ** void *data); |
| 215 | **/ |
| 216 | INIT_WORK(&ch->ch_work, (void *)musycc_wq_chan_restart); |
| 217 | return 0; /* success */ |
| 218 | } |
| 219 | |
| 220 | status_t |
| 221 | c4_wq_port_init (mpi_t * pi) |
| 222 | { |
| 223 | |
| 224 | char name[16], *np; /* NOTE: name of the queue limited by system |
| 225 | * to 10 characters */ |
| 226 | |
| 227 | if (pi->wq_port) |
| 228 | return 0; /* already initialized */ |
| 229 | |
| 230 | np = name; |
| 231 | memset (name, 0, 16); |
| 232 | sprintf (np, "%s%d", pi->up->devname, pi->portnum); /* IE pmcc4-01) */ |
| 233 | |
| 234 | #ifdef RLD_RESTART_DEBUG |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 235 | pr_info(">> %s: creating workqueue <%s> for Port %d.\n", |
| 236 | __func__, name, pi->portnum); /* RLD DEBUG */ |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 237 | #endif |
| 238 | if (!(pi->wq_port = create_singlethread_workqueue (name))) |
| 239 | return ENOMEM; |
| 240 | return 0; /* success */ |
| 241 | } |
| 242 | |
| 243 | void |
| 244 | c4_wq_port_cleanup (mpi_t * pi) |
| 245 | { |
| 246 | /* |
| 247 | * PORT POINT: cannot call this if WQ is statically allocated w/in |
| 248 | * structure since it calls kfree(wq); |
| 249 | */ |
| 250 | if (pi->wq_port) |
| 251 | { |
| 252 | destroy_workqueue (pi->wq_port); /* this also calls |
| 253 | * flush_workqueue() */ |
| 254 | pi->wq_port = 0; |
| 255 | } |
| 256 | } |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 257 | |
| 258 | /***************************************************************************/ |
| 259 | |
| 260 | irqreturn_t |
| 261 | c4_linux_interrupt (int irq, void *dev_instance) |
| 262 | { |
| 263 | struct net_device *ndev = dev_instance; |
| 264 | |
| 265 | return musycc_intr_th_handler(netdev_priv(ndev)); |
| 266 | } |
| 267 | |
| 268 | |
| 269 | #ifdef CONFIG_SBE_PMCC4_NCOMM |
| 270 | irqreturn_t |
| 271 | c4_ebus_interrupt (int irq, void *dev_instance) |
| 272 | { |
| 273 | struct net_device *ndev = dev_instance; |
| 274 | |
| 275 | return c4_ebus_intr_th_handler(netdev_priv(ndev)); |
| 276 | } |
| 277 | #endif |
| 278 | |
| 279 | |
| 280 | static int |
| 281 | void_open (struct net_device * ndev) |
| 282 | { |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 283 | pr_info("%s: trying to open master device !\n", ndev->name); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 284 | return -1; |
| 285 | } |
| 286 | |
| 287 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 288 | STATIC int |
| 289 | chan_open (struct net_device * ndev) |
| 290 | { |
| 291 | hdlc_device *hdlc = dev_to_hdlc (ndev); |
| 292 | const struct c4_priv *priv = hdlc->priv; |
| 293 | int ret; |
| 294 | |
| 295 | if ((ret = hdlc_open (ndev))) |
| 296 | { |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 297 | pr_info("hdlc_open failure, err %d.\n", ret); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 298 | return ret; |
| 299 | } |
| 300 | if ((ret = c4_chan_up (priv->ci, priv->channum))) |
| 301 | return -ret; |
| 302 | try_module_get (THIS_MODULE); |
| 303 | netif_start_queue (ndev); |
| 304 | return 0; /* no error = success */ |
| 305 | } |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 306 | |
| 307 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 308 | STATIC int |
| 309 | chan_close (struct net_device * ndev) |
| 310 | { |
| 311 | hdlc_device *hdlc = dev_to_hdlc (ndev); |
| 312 | const struct c4_priv *priv = hdlc->priv; |
| 313 | |
| 314 | netif_stop_queue (ndev); |
| 315 | musycc_chan_down ((ci_t *) 0, priv->channum); |
| 316 | hdlc_close (ndev); |
| 317 | module_put (THIS_MODULE); |
| 318 | return 0; |
| 319 | } |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 320 | |
| 321 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 322 | STATIC int |
| 323 | chan_dev_ioctl (struct net_device * dev, struct ifreq * ifr, int cmd) |
| 324 | { |
| 325 | return hdlc_ioctl (dev, ifr, cmd); |
| 326 | } |
| 327 | |
| 328 | |
| 329 | STATIC int |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 330 | chan_attach_noop (struct net_device * ndev, unsigned short foo_1, unsigned short foo_2) |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 331 | { |
| 332 | return 0; /* our driver has nothing to do here, show's |
| 333 | * over, go home */ |
| 334 | } |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 335 | |
| 336 | |
| 337 | STATIC struct net_device_stats * |
| 338 | chan_get_stats (struct net_device * ndev) |
| 339 | { |
| 340 | mch_t *ch; |
| 341 | struct net_device_stats *nstats; |
| 342 | struct sbecom_chan_stats *stats; |
| 343 | int channum; |
| 344 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 345 | { |
| 346 | struct c4_priv *priv; |
| 347 | |
| 348 | priv = (struct c4_priv *) dev_to_hdlc (ndev)->priv; |
| 349 | channum = priv->channum; |
| 350 | } |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 351 | |
| 352 | ch = c4_find_chan (channum); |
| 353 | if (ch == NULL) |
| 354 | return NULL; |
| 355 | |
| 356 | nstats = &ndev->stats; |
| 357 | stats = &ch->s; |
| 358 | |
| 359 | memset (nstats, 0, sizeof (struct net_device_stats)); |
| 360 | nstats->rx_packets = stats->rx_packets; |
| 361 | nstats->tx_packets = stats->tx_packets; |
| 362 | nstats->rx_bytes = stats->rx_bytes; |
| 363 | nstats->tx_bytes = stats->tx_bytes; |
| 364 | nstats->rx_errors = stats->rx_length_errors + |
| 365 | stats->rx_over_errors + |
| 366 | stats->rx_crc_errors + |
| 367 | stats->rx_frame_errors + |
| 368 | stats->rx_fifo_errors + |
| 369 | stats->rx_missed_errors; |
| 370 | nstats->tx_errors = stats->tx_dropped + |
| 371 | stats->tx_aborted_errors + |
| 372 | stats->tx_fifo_errors; |
| 373 | nstats->rx_dropped = stats->rx_dropped; |
| 374 | nstats->tx_dropped = stats->tx_dropped; |
| 375 | |
| 376 | nstats->rx_length_errors = stats->rx_length_errors; |
| 377 | nstats->rx_over_errors = stats->rx_over_errors; |
| 378 | nstats->rx_crc_errors = stats->rx_crc_errors; |
| 379 | nstats->rx_frame_errors = stats->rx_frame_errors; |
| 380 | nstats->rx_fifo_errors = stats->rx_fifo_errors; |
| 381 | nstats->rx_missed_errors = stats->rx_missed_errors; |
| 382 | |
| 383 | nstats->tx_aborted_errors = stats->tx_aborted_errors; |
| 384 | nstats->tx_fifo_errors = stats->tx_fifo_errors; |
| 385 | |
| 386 | return nstats; |
| 387 | } |
| 388 | |
| 389 | |
| 390 | static ci_t * |
| 391 | get_ci_by_dev (struct net_device * ndev) |
| 392 | { |
| 393 | return (ci_t *)(netdev_priv(ndev)); |
| 394 | } |
| 395 | |
| 396 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 397 | STATIC int |
| 398 | c4_linux_xmit (struct sk_buff * skb, struct net_device * ndev) |
| 399 | { |
| 400 | const struct c4_priv *priv; |
| 401 | int rval; |
| 402 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 403 | hdlc_device *hdlc = dev_to_hdlc (ndev); |
| 404 | |
| 405 | priv = hdlc->priv; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 406 | |
| 407 | rval = musycc_start_xmit (priv->ci, priv->channum, skb); |
| 408 | return -rval; |
| 409 | } |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 410 | |
| 411 | static const struct net_device_ops chan_ops = { |
| 412 | .ndo_open = chan_open, |
| 413 | .ndo_stop = chan_close, |
| 414 | .ndo_start_xmit = c4_linux_xmit, |
| 415 | .ndo_do_ioctl = chan_dev_ioctl, |
| 416 | .ndo_get_stats = chan_get_stats, |
| 417 | }; |
| 418 | |
| 419 | STATIC struct net_device * |
| 420 | create_chan (struct net_device * ndev, ci_t * ci, |
| 421 | struct sbecom_chan_param * cp) |
| 422 | { |
| 423 | hdlc_device *hdlc; |
| 424 | struct net_device *dev; |
| 425 | hdw_info_t *hi; |
| 426 | int ret; |
| 427 | |
| 428 | if (c4_find_chan (cp->channum)) |
| 429 | return 0; /* channel already exists */ |
| 430 | |
| 431 | { |
| 432 | struct c4_priv *priv; |
| 433 | |
| 434 | /* allocate then fill in private data structure */ |
| 435 | priv = OS_kmalloc (sizeof (struct c4_priv)); |
| 436 | if (!priv) |
| 437 | { |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 438 | pr_warning("%s: no memory for net_device !\n", ci->devname); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 439 | return 0; |
| 440 | } |
| 441 | dev = alloc_hdlcdev (priv); |
| 442 | if (!dev) |
| 443 | { |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 444 | pr_warning("%s: no memory for hdlc_device !\n", ci->devname); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 445 | OS_kfree (priv); |
| 446 | return 0; |
| 447 | } |
| 448 | priv->ci = ci; |
| 449 | priv->channum = cp->channum; |
| 450 | } |
| 451 | |
| 452 | hdlc = dev_to_hdlc (dev); |
| 453 | |
| 454 | dev->base_addr = 0; /* not I/O mapped */ |
| 455 | dev->irq = ndev->irq; |
| 456 | dev->type = ARPHRD_RAWHDLC; |
| 457 | *dev->name = 0; /* default ifconfig name = "hdlc" */ |
| 458 | |
| 459 | hi = (hdw_info_t *) ci->hdw_info; |
| 460 | if (hi->mfg_info_sts == EEPROM_OK) |
| 461 | { |
| 462 | switch (hi->promfmt) |
| 463 | { |
| 464 | case PROM_FORMAT_TYPE1: |
| 465 | memcpy (dev->dev_addr, (FLD_TYPE1 *) (hi->mfg_info.pft1.Serial), 6); |
| 466 | break; |
| 467 | case PROM_FORMAT_TYPE2: |
| 468 | memcpy (dev->dev_addr, (FLD_TYPE2 *) (hi->mfg_info.pft2.Serial), 6); |
| 469 | break; |
| 470 | default: |
| 471 | memset (dev->dev_addr, 0, 6); |
| 472 | break; |
| 473 | } |
| 474 | } else |
| 475 | { |
| 476 | memset (dev->dev_addr, 0, 6); |
| 477 | } |
| 478 | |
| 479 | hdlc->xmit = c4_linux_xmit; |
| 480 | |
| 481 | dev->netdev_ops = &chan_ops; |
| 482 | /* |
| 483 | * The native hdlc stack calls this 'attach' routine during |
| 484 | * hdlc_raw_ioctl(), passing parameters for line encoding and parity. |
| 485 | * Since hdlc_raw_ioctl() stack does not interrogate whether an 'attach' |
| 486 | * routine is actually registered or not, we supply a dummy routine which |
| 487 | * does nothing (since encoding and parity are setup for our driver via a |
| 488 | * special configuration application). |
| 489 | */ |
| 490 | |
| 491 | hdlc->attach = chan_attach_noop; |
| 492 | |
| 493 | rtnl_unlock (); /* needed due to Ioctl calling sequence */ |
| 494 | ret = register_hdlc_device (dev); |
| 495 | /* NOTE: <stats> setting must occur AFTER registration in order to "take" */ |
| 496 | dev->tx_queue_len = MAX_DEFAULT_IFQLEN; |
| 497 | |
| 498 | rtnl_lock (); /* needed due to Ioctl calling sequence */ |
| 499 | if (ret) |
| 500 | { |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 501 | if (cxt1e1_log_level >= LOG_WARN) |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 502 | pr_info("%s: create_chan[%d] registration error = %d.\n", |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 503 | ci->devname, cp->channum, ret); |
| 504 | free_netdev (dev); /* cleanup */ |
| 505 | return 0; /* failed to register */ |
| 506 | } |
| 507 | return dev; |
| 508 | } |
| 509 | |
| 510 | |
| 511 | /* the idea here is to get port information and pass it back (using pointer) */ |
| 512 | STATIC status_t |
| 513 | do_get_port (struct net_device * ndev, void *data) |
| 514 | { |
| 515 | int ret; |
| 516 | ci_t *ci; /* ci stands for card information */ |
| 517 | struct sbecom_port_param pp;/* copy data to kernel land */ |
| 518 | |
| 519 | if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param))) |
| 520 | return -EFAULT; |
| 521 | if (pp.portnum >= MUSYCC_NPORTS) |
| 522 | return -EFAULT; |
| 523 | ci = get_ci_by_dev (ndev); |
| 524 | if (!ci) |
| 525 | return -EINVAL; /* get card info */ |
| 526 | |
| 527 | ret = mkret (c4_get_port (ci, pp.portnum)); |
| 528 | if (ret) |
| 529 | return ret; |
| 530 | if (copy_to_user (data, &ci->port[pp.portnum].p, |
| 531 | sizeof (struct sbecom_port_param))) |
| 532 | return -EFAULT; |
| 533 | return 0; |
| 534 | } |
| 535 | |
| 536 | /* this function copys the user data and then calls the real action function */ |
| 537 | STATIC status_t |
| 538 | do_set_port (struct net_device * ndev, void *data) |
| 539 | { |
| 540 | ci_t *ci; /* ci stands for card information */ |
| 541 | struct sbecom_port_param pp;/* copy data to kernel land */ |
| 542 | |
| 543 | if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param))) |
| 544 | return -EFAULT; |
| 545 | if (pp.portnum >= MUSYCC_NPORTS) |
| 546 | return -EFAULT; |
| 547 | ci = get_ci_by_dev (ndev); |
| 548 | if (!ci) |
| 549 | return -EINVAL; /* get card info */ |
| 550 | |
| 551 | if (pp.portnum >= ci->max_port) /* sanity check */ |
Ralph Loader | 3ec6080 | 2011-01-21 19:27:53 +1300 | [diff] [blame] | 552 | return -ENXIO; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 553 | |
| 554 | memcpy (&ci->port[pp.portnum].p, &pp, sizeof (struct sbecom_port_param)); |
| 555 | return mkret (c4_set_port (ci, pp.portnum)); |
| 556 | } |
| 557 | |
| 558 | /* work the port loopback mode as per directed */ |
| 559 | STATIC status_t |
| 560 | do_port_loop (struct net_device * ndev, void *data) |
| 561 | { |
| 562 | struct sbecom_port_param pp; |
| 563 | ci_t *ci; |
| 564 | |
| 565 | if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param))) |
| 566 | return -EFAULT; |
| 567 | ci = get_ci_by_dev (ndev); |
| 568 | if (!ci) |
| 569 | return -EINVAL; |
| 570 | return mkret (c4_loop_port (ci, pp.portnum, pp.port_mode)); |
| 571 | } |
| 572 | |
| 573 | /* set the specified register with the given value / or just read it */ |
| 574 | STATIC status_t |
| 575 | do_framer_rw (struct net_device * ndev, void *data) |
| 576 | { |
| 577 | struct sbecom_port_param pp; |
| 578 | ci_t *ci; |
| 579 | int ret; |
| 580 | |
| 581 | if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param))) |
| 582 | return -EFAULT; |
| 583 | ci = get_ci_by_dev (ndev); |
| 584 | if (!ci) |
| 585 | return -EINVAL; |
| 586 | ret = mkret (c4_frame_rw (ci, &pp)); |
| 587 | if (ret) |
| 588 | return ret; |
| 589 | if (copy_to_user (data, &pp, sizeof (struct sbecom_port_param))) |
| 590 | return -EFAULT; |
| 591 | return 0; |
| 592 | } |
| 593 | |
| 594 | /* set the specified register with the given value / or just read it */ |
| 595 | STATIC status_t |
| 596 | do_pld_rw (struct net_device * ndev, void *data) |
| 597 | { |
| 598 | struct sbecom_port_param pp; |
| 599 | ci_t *ci; |
| 600 | int ret; |
| 601 | |
| 602 | if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param))) |
| 603 | return -EFAULT; |
| 604 | ci = get_ci_by_dev (ndev); |
| 605 | if (!ci) |
| 606 | return -EINVAL; |
| 607 | ret = mkret (c4_pld_rw (ci, &pp)); |
| 608 | if (ret) |
| 609 | return ret; |
| 610 | if (copy_to_user (data, &pp, sizeof (struct sbecom_port_param))) |
| 611 | return -EFAULT; |
| 612 | return 0; |
| 613 | } |
| 614 | |
| 615 | /* set the specified register with the given value / or just read it */ |
| 616 | STATIC status_t |
| 617 | do_musycc_rw (struct net_device * ndev, void *data) |
| 618 | { |
| 619 | struct c4_musycc_param mp; |
| 620 | ci_t *ci; |
| 621 | int ret; |
| 622 | |
| 623 | if (copy_from_user (&mp, data, sizeof (struct c4_musycc_param))) |
| 624 | return -EFAULT; |
| 625 | ci = get_ci_by_dev (ndev); |
| 626 | if (!ci) |
| 627 | return -EINVAL; |
| 628 | ret = mkret (c4_musycc_rw (ci, &mp)); |
| 629 | if (ret) |
| 630 | return ret; |
| 631 | if (copy_to_user (data, &mp, sizeof (struct c4_musycc_param))) |
| 632 | return -EFAULT; |
| 633 | return 0; |
| 634 | } |
| 635 | |
| 636 | STATIC status_t |
| 637 | do_get_chan (struct net_device * ndev, void *data) |
| 638 | { |
| 639 | struct sbecom_chan_param cp; |
| 640 | int ret; |
| 641 | |
| 642 | if (copy_from_user (&cp, data, |
| 643 | sizeof (struct sbecom_chan_param))) |
| 644 | return -EFAULT; |
| 645 | |
| 646 | if ((ret = mkret (c4_get_chan (cp.channum, &cp)))) |
| 647 | return ret; |
| 648 | |
| 649 | if (copy_to_user (data, &cp, sizeof (struct sbecom_chan_param))) |
| 650 | return -EFAULT; |
| 651 | return 0; |
| 652 | } |
| 653 | |
| 654 | STATIC status_t |
| 655 | do_set_chan (struct net_device * ndev, void *data) |
| 656 | { |
| 657 | struct sbecom_chan_param cp; |
| 658 | int ret; |
| 659 | ci_t *ci; |
| 660 | |
| 661 | if (copy_from_user (&cp, data, sizeof (struct sbecom_chan_param))) |
| 662 | return -EFAULT; |
| 663 | ci = get_ci_by_dev (ndev); |
| 664 | if (!ci) |
| 665 | return -EINVAL; |
| 666 | switch (ret = mkret (c4_set_chan (cp.channum, &cp))) |
| 667 | { |
| 668 | case 0: |
| 669 | return 0; |
| 670 | default: |
| 671 | return ret; |
| 672 | } |
| 673 | } |
| 674 | |
| 675 | STATIC status_t |
| 676 | do_create_chan (struct net_device * ndev, void *data) |
| 677 | { |
| 678 | ci_t *ci; |
| 679 | struct net_device *dev; |
| 680 | struct sbecom_chan_param cp; |
| 681 | int ret; |
| 682 | |
| 683 | if (copy_from_user (&cp, data, sizeof (struct sbecom_chan_param))) |
| 684 | return -EFAULT; |
| 685 | ci = get_ci_by_dev (ndev); |
| 686 | if (!ci) |
| 687 | return -EINVAL; |
| 688 | dev = create_chan (ndev, ci, &cp); |
| 689 | if (!dev) |
| 690 | return -EBUSY; |
| 691 | ret = mkret (c4_new_chan (ci, cp.port, cp.channum, dev)); |
| 692 | if (ret) |
| 693 | { |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 694 | rtnl_unlock (); /* needed due to Ioctl calling sequence */ |
| 695 | unregister_hdlc_device (dev); |
| 696 | rtnl_lock (); /* needed due to Ioctl calling sequence */ |
| 697 | free_netdev (dev); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 698 | } |
| 699 | return ret; |
| 700 | } |
| 701 | |
| 702 | STATIC status_t |
| 703 | do_get_chan_stats (struct net_device * ndev, void *data) |
| 704 | { |
| 705 | struct c4_chan_stats_wrap ccs; |
| 706 | int ret; |
| 707 | |
| 708 | if (copy_from_user (&ccs, data, |
| 709 | sizeof (struct c4_chan_stats_wrap))) |
| 710 | return -EFAULT; |
| 711 | switch (ret = mkret (c4_get_chan_stats (ccs.channum, &ccs.stats))) |
| 712 | { |
| 713 | case 0: |
| 714 | break; |
| 715 | default: |
| 716 | return ret; |
| 717 | } |
| 718 | if (copy_to_user (data, &ccs, |
| 719 | sizeof (struct c4_chan_stats_wrap))) |
| 720 | return -EFAULT; |
| 721 | return 0; |
| 722 | } |
| 723 | STATIC status_t |
| 724 | do_set_loglevel (struct net_device * ndev, void *data) |
| 725 | { |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 726 | unsigned int cxt1e1_log_level; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 727 | |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 728 | if (copy_from_user (&cxt1e1_log_level, data, sizeof (int))) |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 729 | return -EFAULT; |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 730 | sbecom_set_loglevel (cxt1e1_log_level); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 731 | return 0; |
| 732 | } |
| 733 | |
| 734 | STATIC status_t |
| 735 | do_deluser (struct net_device * ndev, int lockit) |
| 736 | { |
| 737 | if (ndev->flags & IFF_UP) |
| 738 | return -EBUSY; |
| 739 | |
| 740 | { |
| 741 | ci_t *ci; |
| 742 | mch_t *ch; |
| 743 | const struct c4_priv *priv; |
| 744 | int channum; |
| 745 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 746 | priv = (struct c4_priv *) dev_to_hdlc (ndev)->priv; |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 747 | ci = priv->ci; |
| 748 | channum = priv->channum; |
| 749 | |
| 750 | ch = c4_find_chan (channum); |
| 751 | if (ch == NULL) |
| 752 | return -ENOENT; |
| 753 | ch->user = 0; /* will be freed, below */ |
| 754 | } |
| 755 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 756 | if (lockit) |
| 757 | rtnl_unlock (); /* needed if Ioctl calling sequence */ |
| 758 | unregister_hdlc_device (ndev); |
| 759 | if (lockit) |
| 760 | rtnl_lock (); /* needed if Ioctl calling sequence */ |
| 761 | free_netdev (ndev); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 762 | return 0; |
| 763 | } |
| 764 | |
| 765 | int |
| 766 | do_del_chan (struct net_device * musycc_dev, void *data) |
| 767 | { |
| 768 | struct sbecom_chan_param cp; |
| 769 | char buf[sizeof (CHANNAME) + 3]; |
| 770 | struct net_device *dev; |
| 771 | int ret; |
| 772 | |
| 773 | if (copy_from_user (&cp, data, |
| 774 | sizeof (struct sbecom_chan_param))) |
| 775 | return -EFAULT; |
| 776 | sprintf (buf, CHANNAME "%d", cp.channum); |
| 777 | if (!(dev = dev_get_by_name (&init_net, buf))) |
| 778 | return -ENOENT; |
| 779 | dev_put (dev); |
| 780 | ret = do_deluser (dev, 1); |
| 781 | if (ret) |
| 782 | return ret; |
| 783 | return c4_del_chan (cp.channum); |
| 784 | } |
| 785 | int c4_reset_board (void *); |
| 786 | |
| 787 | int |
| 788 | do_reset (struct net_device * musycc_dev, void *data) |
| 789 | { |
| 790 | const struct c4_priv *priv; |
| 791 | int i; |
| 792 | |
| 793 | for (i = 0; i < 128; i++) |
| 794 | { |
| 795 | struct net_device *ndev; |
| 796 | char buf[sizeof (CHANNAME) + 3]; |
| 797 | |
| 798 | sprintf (buf, CHANNAME "%d", i); |
| 799 | if (!(ndev = dev_get_by_name(&init_net, buf))) |
| 800 | continue; |
| 801 | priv = dev_to_hdlc (ndev)->priv; |
| 802 | |
| 803 | if ((unsigned long) (priv->ci) == |
| 804 | (unsigned long) (netdev_priv(musycc_dev))) |
| 805 | { |
| 806 | ndev->flags &= ~IFF_UP; |
| 807 | dev_put (ndev); |
| 808 | netif_stop_queue (ndev); |
| 809 | do_deluser (ndev, 1); |
| 810 | } else |
| 811 | dev_put (ndev); |
| 812 | } |
| 813 | return 0; |
| 814 | } |
| 815 | |
| 816 | int |
| 817 | do_reset_chan_stats (struct net_device * musycc_dev, void *data) |
| 818 | { |
| 819 | struct sbecom_chan_param cp; |
| 820 | |
| 821 | if (copy_from_user (&cp, data, |
| 822 | sizeof (struct sbecom_chan_param))) |
| 823 | return -EFAULT; |
| 824 | return mkret (c4_del_chan_stats (cp.channum)); |
| 825 | } |
| 826 | |
| 827 | STATIC status_t |
| 828 | c4_ioctl (struct net_device * ndev, struct ifreq * ifr, int cmd) |
| 829 | { |
| 830 | ci_t *ci; |
| 831 | void *data; |
| 832 | int iocmd, iolen; |
| 833 | status_t ret; |
| 834 | static struct data |
| 835 | { |
| 836 | union |
| 837 | { |
| 838 | u_int8_t c; |
| 839 | u_int32_t i; |
| 840 | struct sbe_brd_info bip; |
| 841 | struct sbe_drv_info dip; |
| 842 | struct sbe_iid_info iip; |
| 843 | struct sbe_brd_addr bap; |
| 844 | struct sbecom_chan_stats stats; |
| 845 | struct sbecom_chan_param param; |
| 846 | struct temux_card_stats cards; |
| 847 | struct sbecom_card_param cardp; |
| 848 | struct sbecom_framer_param frp; |
| 849 | } u; |
| 850 | } arg; |
| 851 | |
| 852 | |
| 853 | if (!capable (CAP_SYS_ADMIN)) |
| 854 | return -EPERM; |
| 855 | if (cmd != SIOCDEVPRIVATE + 15) |
| 856 | return -EINVAL; |
| 857 | if (!(ci = get_ci_by_dev (ndev))) |
| 858 | return -EINVAL; |
| 859 | if (ci->state != C_RUNNING) |
| 860 | return -ENODEV; |
| 861 | if (copy_from_user (&iocmd, ifr->ifr_data, sizeof (iocmd))) |
| 862 | return -EFAULT; |
| 863 | #if 0 |
| 864 | if (copy_from_user (&len, ifr->ifr_data + sizeof (iocmd), sizeof (len))) |
| 865 | return -EFAULT; |
| 866 | #endif |
| 867 | |
| 868 | #if 0 |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 869 | pr_info("c4_ioctl: iocmd %x, dir %x type %x nr %x iolen %d.\n", iocmd, |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 870 | _IOC_DIR (iocmd), _IOC_TYPE (iocmd), _IOC_NR (iocmd), |
| 871 | _IOC_SIZE (iocmd)); |
| 872 | #endif |
| 873 | iolen = _IOC_SIZE (iocmd); |
| 874 | data = ifr->ifr_data + sizeof (iocmd); |
| 875 | if (copy_from_user (&arg, data, iolen)) |
| 876 | return -EFAULT; |
| 877 | |
| 878 | ret = 0; |
| 879 | switch (iocmd) |
| 880 | { |
| 881 | case SBE_IOC_PORT_GET: |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 882 | //pr_info(">> SBE_IOC_PORT_GET Ioctl...\n"); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 883 | ret = do_get_port (ndev, data); |
| 884 | break; |
| 885 | case SBE_IOC_PORT_SET: |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 886 | //pr_info(">> SBE_IOC_PORT_SET Ioctl...\n"); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 887 | ret = do_set_port (ndev, data); |
| 888 | break; |
| 889 | case SBE_IOC_CHAN_GET: |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 890 | //pr_info(">> SBE_IOC_CHAN_GET Ioctl...\n"); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 891 | ret = do_get_chan (ndev, data); |
| 892 | break; |
| 893 | case SBE_IOC_CHAN_SET: |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 894 | //pr_info(">> SBE_IOC_CHAN_SET Ioctl...\n"); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 895 | ret = do_set_chan (ndev, data); |
| 896 | break; |
| 897 | case C4_DEL_CHAN: |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 898 | //pr_info(">> C4_DEL_CHAN Ioctl...\n"); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 899 | ret = do_del_chan (ndev, data); |
| 900 | break; |
| 901 | case SBE_IOC_CHAN_NEW: |
| 902 | ret = do_create_chan (ndev, data); |
| 903 | break; |
| 904 | case SBE_IOC_CHAN_GET_STAT: |
| 905 | ret = do_get_chan_stats (ndev, data); |
| 906 | break; |
| 907 | case SBE_IOC_LOGLEVEL: |
| 908 | ret = do_set_loglevel (ndev, data); |
| 909 | break; |
| 910 | case SBE_IOC_RESET_DEV: |
| 911 | ret = do_reset (ndev, data); |
| 912 | break; |
| 913 | case SBE_IOC_CHAN_DEL_STAT: |
| 914 | ret = do_reset_chan_stats (ndev, data); |
| 915 | break; |
| 916 | case C4_LOOP_PORT: |
| 917 | ret = do_port_loop (ndev, data); |
| 918 | break; |
| 919 | case C4_RW_FRMR: |
| 920 | ret = do_framer_rw (ndev, data); |
| 921 | break; |
| 922 | case C4_RW_MSYC: |
| 923 | ret = do_musycc_rw (ndev, data); |
| 924 | break; |
| 925 | case C4_RW_PLD: |
| 926 | ret = do_pld_rw (ndev, data); |
| 927 | break; |
| 928 | case SBE_IOC_IID_GET: |
| 929 | ret = (iolen == sizeof (struct sbe_iid_info)) ? c4_get_iidinfo (ci, &arg.u.iip) : -EFAULT; |
| 930 | if (ret == 0) /* no error, copy data */ |
| 931 | if (copy_to_user (data, &arg, iolen)) |
| 932 | return -EFAULT; |
| 933 | break; |
| 934 | default: |
Joe Perches | 694a980 | 2010-05-03 12:33:16 -0700 | [diff] [blame] | 935 | //pr_info(">> c4_ioctl: EINVAL - unknown iocmd <%x>\n", iocmd); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 936 | ret = -EINVAL; |
| 937 | break; |
| 938 | } |
| 939 | return mkret (ret); |
| 940 | } |
| 941 | |
| 942 | static const struct net_device_ops c4_ops = { |
| 943 | .ndo_open = void_open, |
| 944 | .ndo_start_xmit = c4_linux_xmit, |
| 945 | .ndo_do_ioctl = c4_ioctl, |
| 946 | }; |
| 947 | |
| 948 | static void c4_setup(struct net_device *dev) |
| 949 | { |
| 950 | dev->type = ARPHRD_VOID; |
| 951 | dev->netdev_ops = &c4_ops; |
| 952 | } |
| 953 | |
| 954 | struct net_device *__init |
| 955 | c4_add_dev (hdw_info_t * hi, int brdno, unsigned long f0, unsigned long f1, |
| 956 | int irq0, int irq1) |
| 957 | { |
| 958 | struct net_device *ndev; |
| 959 | ci_t *ci; |
| 960 | |
| 961 | ndev = alloc_netdev(sizeof(ci_t), SBE_IFACETMPL, c4_setup); |
| 962 | if (!ndev) |
| 963 | { |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 964 | pr_warning("%s: no memory for struct net_device !\n", hi->devname); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 965 | error_flag = ENOMEM; |
| 966 | return 0; |
| 967 | } |
| 968 | ci = (ci_t *)(netdev_priv(ndev)); |
| 969 | ndev->irq = irq0; |
| 970 | |
| 971 | ci->hdw_info = hi; |
| 972 | ci->state = C_INIT; /* mark as hardware not available */ |
| 973 | ci->next = c4_list; |
| 974 | c4_list = ci; |
| 975 | ci->brdno = ci->next ? ci->next->brdno + 1 : 0; |
| 976 | |
| 977 | if (CI == 0) |
| 978 | CI = ci; /* DEBUG, only board 0 usage */ |
| 979 | |
| 980 | strcpy (ci->devname, hi->devname); |
| 981 | ci->release = &pmcc4_OSSI_release[0]; |
| 982 | |
| 983 | /* tasklet */ |
| 984 | #if defined(SBE_ISR_TASKLET) |
| 985 | tasklet_init (&ci->ci_musycc_isr_tasklet, |
| 986 | (void (*) (unsigned long)) musycc_intr_bh_tasklet, |
| 987 | (unsigned long) ci); |
| 988 | |
| 989 | if (atomic_read (&ci->ci_musycc_isr_tasklet.count) == 0) |
| 990 | tasklet_disable_nosync (&ci->ci_musycc_isr_tasklet); |
| 991 | #elif defined(SBE_ISR_IMMEDIATE) |
| 992 | ci->ci_musycc_isr_tq.routine = (void *) (unsigned long) musycc_intr_bh_tasklet; |
| 993 | ci->ci_musycc_isr_tq.data = ci; |
| 994 | #endif |
| 995 | |
| 996 | |
| 997 | if (register_netdev (ndev) || |
| 998 | (c4_init (ci, (u_char *) f0, (u_char *) f1) != SBE_DRVR_SUCCESS)) |
| 999 | { |
| 1000 | OS_kfree (netdev_priv(ndev)); |
| 1001 | OS_kfree (ndev); |
| 1002 | error_flag = ENODEV; |
| 1003 | return 0; |
| 1004 | } |
| 1005 | /************************************************************* |
| 1006 | * int request_irq(unsigned int irq, |
| 1007 | * void (*handler)(int, void *, struct pt_regs *), |
| 1008 | * unsigned long flags, const char *dev_name, void *dev_id); |
| 1009 | * wherein: |
| 1010 | * irq -> The interrupt number that is being requested. |
| 1011 | * handler -> Pointer to handling function being installed. |
| 1012 | * flags -> A bit mask of options related to interrupt management. |
| 1013 | * dev_name -> String used in /proc/interrupts to show owner of interrupt. |
| 1014 | * dev_id -> Pointer (for shared interrupt lines) to point to its own |
| 1015 | * private data area (to identify which device is interrupting). |
| 1016 | * |
| 1017 | * extern void free_irq(unsigned int irq, void *dev_id); |
| 1018 | **************************************************************/ |
| 1019 | |
| 1020 | if (request_irq (irq0, &c4_linux_interrupt, |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1021 | IRQF_SHARED, |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1022 | ndev->name, ndev)) |
| 1023 | { |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 1024 | pr_warning("%s: MUSYCC could not get irq: %d\n", ndev->name, irq0); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1025 | unregister_netdev (ndev); |
| 1026 | OS_kfree (netdev_priv(ndev)); |
| 1027 | OS_kfree (ndev); |
| 1028 | error_flag = EIO; |
| 1029 | return 0; |
| 1030 | } |
| 1031 | #ifdef CONFIG_SBE_PMCC4_NCOMM |
| 1032 | if (request_irq (irq1, &c4_ebus_interrupt, IRQF_SHARED, ndev->name, ndev)) |
| 1033 | { |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 1034 | pr_warning("%s: EBUS could not get irq: %d\n", hi->devname, irq1); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1035 | unregister_netdev (ndev); |
| 1036 | free_irq (irq0, ndev); |
Randy Dunlap | d87d909 | 2010-04-30 10:07:12 -0700 | [diff] [blame] | 1037 | OS_kfree (netdev_priv(ndev)); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1038 | OS_kfree (ndev); |
| 1039 | error_flag = EIO; |
| 1040 | return 0; |
| 1041 | } |
| 1042 | #endif |
| 1043 | |
| 1044 | /* setup board identification information */ |
| 1045 | |
| 1046 | { |
| 1047 | u_int32_t tmp; |
| 1048 | |
| 1049 | hdw_sn_get (hi, brdno); /* also sets PROM format type (promfmt) |
| 1050 | * for later usage */ |
| 1051 | |
| 1052 | switch (hi->promfmt) |
| 1053 | { |
| 1054 | case PROM_FORMAT_TYPE1: |
| 1055 | memcpy (ndev->dev_addr, (FLD_TYPE1 *) (hi->mfg_info.pft1.Serial), 6); |
| 1056 | memcpy (&tmp, (FLD_TYPE1 *) (hi->mfg_info.pft1.Id), 4); /* unaligned data |
| 1057 | * acquisition */ |
| 1058 | ci->brd_id = cpu_to_be32 (tmp); |
| 1059 | break; |
| 1060 | case PROM_FORMAT_TYPE2: |
| 1061 | memcpy (ndev->dev_addr, (FLD_TYPE2 *) (hi->mfg_info.pft2.Serial), 6); |
| 1062 | memcpy (&tmp, (FLD_TYPE2 *) (hi->mfg_info.pft2.Id), 4); /* unaligned data |
| 1063 | * acquisition */ |
| 1064 | ci->brd_id = cpu_to_be32 (tmp); |
| 1065 | break; |
| 1066 | default: |
| 1067 | ci->brd_id = 0; |
| 1068 | memset (ndev->dev_addr, 0, 6); |
| 1069 | break; |
| 1070 | } |
| 1071 | |
| 1072 | #if 1 |
| 1073 | sbeid_set_hdwbid (ci); /* requires bid to be preset */ |
| 1074 | #else |
| 1075 | sbeid_set_bdtype (ci); /* requires hdw_bid to be preset */ |
| 1076 | #endif |
| 1077 | |
| 1078 | } |
| 1079 | |
| 1080 | #ifdef CONFIG_PROC_FS |
| 1081 | sbecom_proc_brd_init (ci); |
| 1082 | #endif |
| 1083 | #if defined(SBE_ISR_TASKLET) |
| 1084 | tasklet_enable (&ci->ci_musycc_isr_tasklet); |
| 1085 | #endif |
| 1086 | |
| 1087 | |
| 1088 | if ((error_flag = c4_init2 (ci)) != SBE_DRVR_SUCCESS) |
| 1089 | { |
| 1090 | #ifdef CONFIG_PROC_FS |
| 1091 | sbecom_proc_brd_cleanup (ci); |
| 1092 | #endif |
| 1093 | unregister_netdev (ndev); |
| 1094 | free_irq (irq1, ndev); |
| 1095 | free_irq (irq0, ndev); |
| 1096 | OS_kfree (netdev_priv(ndev)); |
| 1097 | OS_kfree (ndev); |
| 1098 | return 0; /* failure, error_flag is set */ |
| 1099 | } |
| 1100 | return ndev; |
| 1101 | } |
| 1102 | |
| 1103 | STATIC int __init |
| 1104 | c4_mod_init (void) |
| 1105 | { |
| 1106 | int rtn; |
| 1107 | |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 1108 | pr_warning("%s\n", pmcc4_OSSI_release); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1109 | if ((rtn = c4hw_attach_all ())) |
| 1110 | return -rtn; /* installation failure - see system log */ |
| 1111 | |
| 1112 | /* housekeeping notifications */ |
Greg Kroah-Hartman | b8b7399 | 2010-12-10 10:46:30 -0800 | [diff] [blame] | 1113 | if (cxt1e1_log_level != log_level_default) |
| 1114 | pr_info("NOTE: driver parameter <cxt1e1_log_level> changed from default %d to %d.\n", |
| 1115 | log_level_default, cxt1e1_log_level); |
Bob Beers | c694ed8 | 2010-10-16 18:06:36 -0400 | [diff] [blame] | 1116 | if (cxt1e1_max_mru != max_mru_default) |
| 1117 | pr_info("NOTE: driver parameter <cxt1e1_max_mru> changed from default %d to %d.\n", |
| 1118 | max_mru_default, cxt1e1_max_mru); |
| 1119 | if (cxt1e1_max_mtu != max_mtu_default) |
| 1120 | pr_info("NOTE: driver parameter <cxt1e1_max_mtu> changed from default %d to %d.\n", |
| 1121 | max_mtu_default, cxt1e1_max_mtu); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1122 | if (max_rxdesc_used != max_rxdesc_default) |
| 1123 | { |
| 1124 | if (max_rxdesc_used > 2000) |
| 1125 | max_rxdesc_used = 2000; /* out-of-bounds reset */ |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 1126 | pr_info("NOTE: driver parameter <max_rxdesc_used> changed from default %d to %d.\n", |
| 1127 | max_rxdesc_default, max_rxdesc_used); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1128 | } |
| 1129 | if (max_txdesc_used != max_txdesc_default) |
| 1130 | { |
| 1131 | if (max_txdesc_used > 1000) |
| 1132 | max_txdesc_used = 1000; /* out-of-bounds reset */ |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 1133 | pr_info("NOTE: driver parameter <max_txdesc_used> changed from default %d to %d.\n", |
| 1134 | max_txdesc_default, max_txdesc_used); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1135 | } |
| 1136 | return 0; /* installation success */ |
| 1137 | } |
| 1138 | |
| 1139 | |
| 1140 | /* |
| 1141 | * find any still allocated hdlc registrations and unregister via call to |
| 1142 | * do_deluser() |
| 1143 | */ |
| 1144 | |
| 1145 | STATIC void __exit |
| 1146 | cleanup_hdlc (void) |
| 1147 | { |
| 1148 | hdw_info_t *hi; |
| 1149 | ci_t *ci; |
| 1150 | struct net_device *ndev; |
| 1151 | int i, j, k; |
| 1152 | |
| 1153 | for (i = 0, hi = hdw_info; i < MAX_BOARDS; i++, hi++) |
| 1154 | { |
| 1155 | if (hi->ndev) /* a board has been attached */ |
| 1156 | { |
| 1157 | ci = (ci_t *)(netdev_priv(hi->ndev)); |
| 1158 | for (j = 0; j < ci->max_port; j++) |
| 1159 | for (k = 0; k < MUSYCC_NCHANS; k++) |
| 1160 | if ((ndev = ci->port[j].chan[k]->user)) |
| 1161 | { |
| 1162 | do_deluser (ndev, 0); |
| 1163 | } |
| 1164 | } |
| 1165 | } |
| 1166 | } |
| 1167 | |
| 1168 | |
| 1169 | STATIC void __exit |
| 1170 | c4_mod_remove (void) |
| 1171 | { |
| 1172 | cleanup_hdlc (); /* delete any missed channels */ |
| 1173 | cleanup_devs (); |
| 1174 | c4_cleanup (); |
| 1175 | cleanup_ioremap (); |
Joe Perches | e6e4d05 | 2010-05-03 11:02:44 -0700 | [diff] [blame] | 1176 | pr_info("SBE - driver removed.\n"); |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1177 | } |
| 1178 | |
| 1179 | module_init (c4_mod_init); |
| 1180 | module_exit (c4_mod_remove); |
| 1181 | |
Bob Beers | 50ee11f | 2010-03-04 08:40:46 -0500 | [diff] [blame] | 1182 | MODULE_AUTHOR ("SBE Technical Services <support@sbei.com>"); |
| 1183 | MODULE_DESCRIPTION ("wanPCI-CxT1E1 Generic HDLC WAN Driver module"); |
| 1184 | #ifdef MODULE_LICENSE |
| 1185 | MODULE_LICENSE ("GPL"); |
| 1186 | #endif |
| 1187 | |
| 1188 | /*** End-of-File ***/ |