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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 | /* at1700.c: A network device driver for the Allied Telesis AT1700. Written 1993-94 by Donald Becker. Copyright 1993 United States Government as represented by the Director, National Security Agency. This software may be used and distributed according to the terms of the GNU Public License, incorporated herein by reference. The author may be reached as becker@CESDIS.gsfc.nasa.gov, or C/O Center of Excellence in Space Data and Information Sciences Code 930.5, Goddard Space Flight Center, Greenbelt MD 20771 This is a device driver for the Allied Telesis AT1700, which is a straight-forward Fujitsu MB86965 implementation. Sources: The Fujitsu MB86965 datasheet. After the initial version of this driver was written Gerry Sawkins of ATI provided their EEPROM configuration code header file. Thanks to NIIBE Yutaka <gniibe@mri.co.jp> for bug fixes. Bugs: The MB86965 has a design flaw that makes all probes unreliable. Not only is it difficult to detect, it also moves around in I/O space in response to inb()s from other device probes! */ static const char *version = "at1700.c:v1.12 1/18/95 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; #include <linux/module.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/types.h> #include <linux/fcntl.h> #include <linux/interrupt.h> #include <linux/ptrace.h> #include <linux/ioport.h> #include <linux/in.h> #include <linux/malloc.h> #include <linux/string.h> #include <asm/system.h> #include <asm/bitops.h> #include <asm/io.h> #include <asm/dma.h> #include <linux/errno.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/skbuff.h> /* This unusual address order is used to verify the CONFIG register. */ static int at1700_probe_list[] = {0x260, 0x280, 0x2a0, 0x240, 0x340, 0x320, 0x380, 0x300, 0}; /* use 0 for production, 1 for verification, >2 for debug */ #ifndef NET_DEBUG #define NET_DEBUG 1 #endif static unsigned int net_debug = NET_DEBUG; typedef unsigned char uchar; /* Information that need to be kept for each board. */ struct net_local { struct enet_statistics stats; uint tx_started:1; /* Number of packet on the Tx queue. */ uchar tx_queue; /* Number of packet on the Tx queue. */ ushort tx_queue_len; /* Current length of the Tx queue. */ }; /* Offsets from the base address. */ #define STATUS 0 #define TX_STATUS 0 #define RX_STATUS 1 #define TX_INTR 2 /* Bit-mapped interrupt enable registers. */ #define RX_INTR 3 #define TX_MODE 4 #define RX_MODE 5 #define CONFIG_0 6 /* Misc. configuration settings. */ #define CONFIG_1 7 /* Run-time register bank 2 definitions. */ #define DATAPORT 8 /* Word-wide DMA or programmed-I/O dataport. */ #define TX_START 10 #define MODE13 13 #define EEPROM_Ctrl 16 #define EEPROM_Data 17 #define IOCONFIG 19 #define RESET 31 /* Write to reset some parts of the chip. */ #define AT1700_IO_EXTENT 32 /* EEPROM_Ctrl bits. */ #define EE_SHIFT_CLK 0x40 /* EEPROM shift clock, in reg. 16. */ #define EE_CS 0x20 /* EEPROM chip select, in reg. 16. */ #define EE_DATA_WRITE 0x80 /* EEPROM chip data in, in reg. 17. */ #define EE_DATA_READ 0x80 /* EEPROM chip data out, in reg. 17. */ /* Delay between EEPROM clock transitions. */ #define eeprom_delay() do { int _i = 40; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0) /* The EEPROM commands include the alway-set leading bit. */ #define EE_WRITE_CMD (5 << 6) #define EE_READ_CMD (6 << 6) #define EE_ERASE_CMD (7 << 6) /* Index to functions, as function prototypes. */ extern int at1700_probe(struct device *dev); static int at1700_probe1(struct device *dev, short ioaddr); static int read_eeprom(int ioaddr, int location); static int net_open(struct device *dev); static int net_send_packet(struct sk_buff *skb, struct device *dev); static void net_interrupt(int irq, void *dev_id, struct pt_regs *regs); static void net_rx(struct device *dev); static int net_close(struct device *dev); static struct enet_statistics *net_get_stats(struct device *dev); static void set_multicast_list(struct device *dev); /* Check for a network adaptor of this type, and return '0' iff one exists. If dev->base_addr == 0, probe all likely locations. If dev->base_addr == 1, always return failure. If dev->base_addr == 2, allocate space for the device and return success (detachable devices only). */ #ifdef HAVE_DEVLIST /* Support for a alternate probe manager, which will eliminate the boilerplate below. */ struct netdev_entry at1700_drv = {"at1700", at1700_probe1, AT1700_IO_EXTENT, at1700_probe_list}; #else int at1700_probe(struct device *dev) { int i; int base_addr = dev ? dev->base_addr : 0; if (base_addr > 0x1ff) /* Check a single specified location. */ return at1700_probe1(dev, base_addr); else if (base_addr != 0) /* Don't probe at all. */ return ENXIO; for (i = 0; at1700_probe_list[i]; i++) { int ioaddr = at1700_probe_list[i]; if (check_region(ioaddr, AT1700_IO_EXTENT)) continue; if (at1700_probe1(dev, ioaddr) == 0) return 0; } return ENODEV; } #endif /* The Fujitsu datasheet suggests that the NIC be probed for by checking its "signature", the default bit pattern after a reset. This *doesn't* work -- there is no way to reset the bus interface without a complete power-cycle! It turns out that ATI came to the same conclusion I did: the only thing that can be done is checking a few bits and then diving right into an EEPROM read. */ int at1700_probe1(struct device *dev, short ioaddr) { char irqmap[8] = {3, 4, 5, 9, 10, 11, 14, 15}; unsigned int i, irq; /* Resetting the chip doesn't reset the ISA interface, so don't bother. That means we have to be careful with the register values we probe for. */ #ifdef notdef printk("at1700 probe at %#x, eeprom is %4.4x %4.4x %4.4x ctrl %4.4x.\n", ioaddr, read_eeprom(ioaddr, 4), read_eeprom(ioaddr, 5), read_eeprom(ioaddr, 6), inw(ioaddr + EEPROM_Ctrl)); #endif if (at1700_probe_list[inb(ioaddr + IOCONFIG) & 0x07] != ioaddr || read_eeprom(ioaddr, 4) != 0x0000 || (read_eeprom(ioaddr, 5) & 0xff00) != 0xF400) return -ENODEV; /* Reset the internal state machines. */ outb(0, ioaddr + RESET); irq = irqmap[(read_eeprom(ioaddr, 12)&0x04) | (read_eeprom(ioaddr, 0)>>14)]; /* Snarf the interrupt vector now. */ if (request_irq(irq, &net_interrupt, 0, "at1700", NULL)) { printk ("AT1700 found at %#3x, but it's unusable due to a conflict on" "IRQ %d.\n", ioaddr, irq); return EAGAIN; } /* Allocate a new 'dev' if needed. */ if (dev == NULL) dev = init_etherdev(0, sizeof(struct net_local)); /* Grab the region so that we can find another board if the IRQ request fails. */ request_region(ioaddr, AT1700_IO_EXTENT, "at1700"); printk("%s: AT1700 found at %#3x, IRQ %d, address ", dev->name, ioaddr, irq); dev->base_addr = ioaddr; dev->irq = irq; irq2dev_map[irq] = dev; for(i = 0; i < 3; i++) { unsigned short eeprom_val = read_eeprom(ioaddr, 4+i); printk("%04x", eeprom_val); ((unsigned short *)dev->dev_addr)[i] = ntohs(eeprom_val); } /* The EEPROM word 12 bit 0x0400 means use regular 100 ohm 10baseT signals, rather than 150 ohm shielded twisted pair compensation. 0x0000 == auto-sense the interface 0x0800 == use TP interface 0x1800 == use coax interface */ { const char *porttype[] = {"auto-sense", "10baseT", "auto-sense", "10base2"}; ushort setup_value = read_eeprom(ioaddr, 12); dev->if_port = setup_value >> 8; printk(" %s interface.\n", porttype[(dev->if_port>>3) & 3]); } /* Set the station address in bank zero. */ outb(0xe0, ioaddr + 7); for (i = 0; i < 6; i++) outb(dev->dev_addr[i], ioaddr + 8 + i); /* Switch to bank 1 and set the multicast table to accept none. */ outb(0xe4, ioaddr + 7); for (i = 0; i < 8; i++) outb(0x00, ioaddr + 8 + i); /* Set the configuration register 0 to 32K 100ns. byte-wide memory, 16 bit bus access, two 4K Tx queues, and disabled Tx and Rx. */ outb(0xda, ioaddr + CONFIG_0); /* Switch to bank 2 and lock our I/O address. */ outb(0xe8, ioaddr + 7); outb(dev->if_port, MODE13); /* Power-down the chip. Aren't we green! */ outb(0x00, ioaddr + CONFIG_1); if (net_debug) printk(version); /* Initialize the device structure. */ dev->priv = kmalloc(sizeof(struct net_local), GFP_KERNEL); if (dev->priv == NULL) return -ENOMEM; memset(dev->priv, 0, sizeof(struct net_local)); dev->open = net_open; dev->stop = net_close; dev->hard_start_xmit = net_send_packet; dev->get_stats = net_get_stats; dev->set_multicast_list = &set_multicast_list; /* Fill in the fields of 'dev' with ethernet-generic values. */ ether_setup(dev); return 0; } static int read_eeprom(int ioaddr, int location) { int i; unsigned short retval = 0; short ee_addr = ioaddr + EEPROM_Ctrl; short ee_daddr = ioaddr + EEPROM_Data; int read_cmd = location | EE_READ_CMD; short ctrl_val = EE_CS; outb(ctrl_val, ee_addr); /* Shift the read command bits out. */ for (i = 9; i >= 0; i--) { short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; outb(dataval, ee_daddr); outb(EE_CS | EE_SHIFT_CLK, ee_addr); /* EEPROM clock tick. */ eeprom_delay(); outb(EE_CS, ee_addr); /* Finish EEPROM a clock tick. */ eeprom_delay(); } outb(EE_CS, ee_addr); for (i = 16; i > 0; i--) { outb(EE_CS | EE_SHIFT_CLK, ee_addr); eeprom_delay(); retval = (retval << 1) | ((inb(ee_daddr) & EE_DATA_READ) ? 1 : 0); outb(EE_CS, ee_addr); eeprom_delay(); } /* Terminate the EEPROM access. */ ctrl_val &= ~EE_CS; outb(ctrl_val | EE_SHIFT_CLK, ee_addr); eeprom_delay(); outb(ctrl_val, ee_addr); eeprom_delay(); return retval; } static int net_open(struct device *dev) { struct net_local *lp = (struct net_local *)dev->priv; int ioaddr = dev->base_addr; int i; /* Powerup the chip, initialize config register 1, and select bank 0. */ outb(0xe0, ioaddr + CONFIG_1); /* Set the station address in bank zero. */ for (i = 0; i < 6; i++) outb(dev->dev_addr[i], ioaddr + 8 + i); /* Switch to bank 1 and set the multicast table to accept none. */ outb(0xe4, ioaddr + 7); for (i = 0; i < 8; i++) outb(0x00, ioaddr + 8 + i); /* Set the configuration register 0 to 32K 100ns. byte-wide memory, 16 bit bus access, and two 4K Tx queues. */ outb(0xda, ioaddr + CONFIG_0); /* Same config 0, except enable the Rx and Tx. */ outb(0x5a, ioaddr + CONFIG_0); /* Switch to register bank 2 for the run-time registers. */ outb(0xe8, ioaddr + CONFIG_1); lp->tx_started = 0; lp->tx_queue = 0; lp->tx_queue_len = 0; /* Turn on Rx interrupts, leave Tx interrupts off until packet Tx. */ outb(0x00, ioaddr + TX_INTR); outb(0x81, ioaddr + RX_INTR); dev->tbusy = 0; dev->interrupt = 0; dev->start = 1; MOD_INC_USE_COUNT; return 0; } static int net_send_packet(struct sk_buff *skb, struct device *dev) { struct net_local *lp = (struct net_local *)dev->priv; int ioaddr = dev->base_addr; if (dev->tbusy) { /* If we get here, some higher level has decided we are broken. There should really be a "kick me" function call instead. */ int tickssofar = jiffies - dev->trans_start; if (tickssofar < 10) return 1; printk("%s: transmit timed out with status %04x, %s?\n", dev->name, inw(ioaddr + STATUS), inb(ioaddr + TX_STATUS) & 0x80 ? "IRQ conflict" : "network cable problem"); printk("%s: timeout registers: %04x %04x %04x %04x %04x %04x %04x %04x.\n", dev->name, inw(ioaddr + 0), inw(ioaddr + 2), inw(ioaddr + 4), inw(ioaddr + 6), inw(ioaddr + 8), inw(ioaddr + 10), inw(ioaddr + 12), inw(ioaddr + 14)); lp->stats.tx_errors++; /* ToDo: We should try to restart the adaptor... */ outw(0xffff, ioaddr + 24); outw(0xffff, ioaddr + TX_STATUS); outw(0xe85a, ioaddr + CONFIG_0); outw(0x8100, ioaddr + TX_INTR); dev->tbusy=0; dev->trans_start = jiffies; lp->tx_started = 0; lp->tx_queue = 0; lp->tx_queue_len = 0; } /* If some higher layer thinks we've missed an tx-done interrupt we are passed NULL. Caution: dev_tint() handles the cli()/sti() itself. */ if (skb == NULL) { dev_tint(dev); return 0; } /* Block a timer-based transmit from overlapping. This could better be done with atomic_swap(1, dev->tbusy), but set_bit() works as well. */ if (set_bit(0, (void*)&dev->tbusy) != 0) printk("%s: Transmitter access conflict.\n", dev->name); else { short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; unsigned char *buf = skb->data; /* Turn off the possible Tx interrupts. */ outb(0x00, ioaddr + TX_INTR); outw(length, ioaddr + DATAPORT); outsw(ioaddr + DATAPORT, buf, (length + 1) >> 1); lp->tx_queue++; lp->tx_queue_len += length + 2; if (lp->tx_started == 0) { /* If the Tx is idle, always trigger a transmit. */ outb(0x80 | lp->tx_queue, ioaddr + TX_START); lp->tx_queue = 0; lp->tx_queue_len = 0; dev->trans_start = jiffies; lp->tx_started = 1; dev->tbusy = 0; } else if (lp->tx_queue_len < 4096 - 1502) /* Yes, there is room for one more packet. */ dev->tbusy = 0; /* Turn on Tx interrupts back on. */ outb(0x82, ioaddr + TX_INTR); } dev_kfree_skb (skb, FREE_WRITE); return 0; } /* The typical workload of the driver: Handle the network interface interrupts. */ static void net_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct device *dev = (struct device *)(irq2dev_map[irq]); struct net_local *lp; int ioaddr, status; if (dev == NULL) { printk ("at1700_interrupt(): irq %d for unknown device.\n", irq); return; } dev->interrupt = 1; ioaddr = dev->base_addr; lp = (struct net_local *)dev->priv; status = inw(ioaddr + TX_STATUS); outw(status, ioaddr + TX_STATUS); if (net_debug > 4) printk("%s: Interrupt with status %04x.\n", dev->name, status); if (status & 0xff00 || (inb(ioaddr + RX_MODE) & 0x40) == 0) { /* Got a packet(s). */ net_rx(dev); } if (status & 0x00ff) { if (status & 0x80) { lp->stats.tx_packets++; if (lp->tx_queue) { outb(0x80 | lp->tx_queue, ioaddr + TX_START); lp->tx_queue = 0; lp->tx_queue_len = 0; dev->trans_start = jiffies; dev->tbusy = 0; mark_bh(NET_BH); /* Inform upper layers. */ } else { lp->tx_started = 0; /* Turn on Tx interrupts off. */ outb(0x00, ioaddr + TX_INTR); dev->tbusy = 0; mark_bh(NET_BH); /* Inform upper layers. */ } } } dev->interrupt = 0; return; } /* We have a good packet(s), get it/them out of the buffers. */ static void net_rx(struct device *dev) { struct net_local *lp = (struct net_local *)dev->priv; int ioaddr = dev->base_addr; int boguscount = 5; while ((inb(ioaddr + RX_MODE) & 0x40) == 0) { ushort status = inw(ioaddr + DATAPORT); ushort pkt_len = inw(ioaddr + DATAPORT); if (net_debug > 4) printk("%s: Rxing packet mode %02x status %04x.\n", dev->name, inb(ioaddr + RX_MODE), status); #ifndef final_version if (status == 0) { outb(0x05, ioaddr + 14); break; } #endif if ((status & 0xF0) != 0x20) { /* There was an error. */ lp->stats.rx_errors++; if (status & 0x08) lp->stats.rx_length_errors++; if (status & 0x04) lp->stats.rx_frame_errors++; if (status & 0x02) lp->stats.rx_crc_errors++; if (status & 0x01) lp->stats.rx_over_errors++; } else { /* Malloc up new buffer. */ struct sk_buff *skb; if (pkt_len > 1550) { printk("%s: The AT1700 claimed a very large packet, size %d.\n", dev->name, pkt_len); /* Prime the FIFO and then flush the packet. */ inw(ioaddr + DATAPORT); inw(ioaddr + DATAPORT); outb(0x05, ioaddr + 14); lp->stats.rx_errors++; break; } skb = dev_alloc_skb(pkt_len+3); if (skb == NULL) { printk("%s: Memory squeeze, dropping packet (len %d).\n", dev->name, pkt_len); /* Prime the FIFO and then flush the packet. */ inw(ioaddr + DATAPORT); inw(ioaddr + DATAPORT); outb(0x05, ioaddr + 14); lp->stats.rx_dropped++; break; } skb->dev = dev; skb_reserve(skb,2); insw(ioaddr + DATAPORT, skb_put(skb,pkt_len), (pkt_len + 1) >> 1); skb->protocol=eth_type_trans(skb, dev); netif_rx(skb); lp->stats.rx_packets++; } if (--boguscount <= 0) break; } /* If any worth-while packets have been received, dev_rint() has done a mark_bh(NET_BH) for us and will work on them when we get to the bottom-half routine. */ { int i; for (i = 0; i < 20; i++) { if ((inb(ioaddr + RX_MODE) & 0x40) == 0x40) break; inw(ioaddr + DATAPORT); /* dummy status read */ outb(0x05, ioaddr + 14); } if (net_debug > 5) printk("%s: Exint Rx packet with mode %02x after %d ticks.\n", dev->name, inb(ioaddr + RX_MODE), i); } return; } /* The inverse routine to net_open(). */ static int net_close(struct device *dev) { int ioaddr = dev->base_addr; dev->tbusy = 1; dev->start = 0; /* Set configuration register 0 to disable Tx and Rx. */ outb(0xda, ioaddr + CONFIG_0); /* Update the statistics -- ToDo. */ /* Power-down the chip. Green, green, green! */ outb(0x00, ioaddr + CONFIG_1); MOD_DEC_USE_COUNT; return 0; } /* Get the current statistics. This may be called with the card open or closed. */ static struct enet_statistics * net_get_stats(struct device *dev) { struct net_local *lp = (struct net_local *)dev->priv; cli(); /* ToDo: Update the statistics from the device registers. */ sti(); return &lp->stats; } /* Set or clear the multicast filter for this adaptor. num_addrs == -1 Promiscuous mode, receive all packets num_addrs == 0 Normal mode, clear multicast list num_addrs > 0 Multicast mode, receive normal and MC packets, and do best-effort filtering. */ static void set_multicast_list(struct device *dev) { short ioaddr = dev->base_addr; if (dev->mc_count || dev->flags&(IFF_PROMISC|IFF_ALLMULTI)) { /* * We must make the kernel realise we had to move * into promisc mode or we start all out war on * the cable. - AC */ dev->flags|=IFF_PROMISC; outb(3, ioaddr + RX_MODE); /* Enable promiscuous mode */ } else outb(2, ioaddr + RX_MODE); /* Disable promiscuous, use normal mode */ } #ifdef MODULE static char devicename[9] = { 0, }; static struct device dev_at1700 = { devicename, /* device name is inserted by linux/drivers/net/net_init.c */ 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, at1700_probe }; static int io = 0x260; static int irq = 0; int init_module(void) { if (io == 0) printk("at1700: You should not use auto-probing with insmod!\n"); dev_at1700.base_addr = io; dev_at1700.irq = irq; if (register_netdev(&dev_at1700) != 0) { printk("at1700: register_netdev() returned non-zero.\n"); return -EIO; } return 0; } void cleanup_module(void) { unregister_netdev(&dev_at1700); kfree(dev_at1700.priv); dev_at1700.priv = NULL; /* If we don't do this, we can't re-insmod it later. */ free_irq(dev_at1700.irq, NULL); irq2dev_map[dev_at1700.irq] = NULL; release_region(dev_at1700.base_addr, AT1700_IO_EXTENT); } #endif /* MODULE */ /* * Local variables: * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c at1700.c" * version-control: t * kept-new-versions: 5 * tab-width: 4 * c-indent-level: 4 * End: */ |