1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Probe module for 8250/16550-type Exar chips PCI serial ports. 4 * 5 * Based on drivers/tty/serial/8250/8250_pci.c, 6 * 7 * Copyright (C) 2017 Sudip Mukherjee, All Rights Reserved. 8 */ 9 #include <linux/acpi.h> 10 #include <linux/dmi.h> 11 #include <linux/io.h> 12 #include <linux/kernel.h> 13 #include <linux/module.h> 14 #include <linux/pci.h> 15 #include <linux/property.h> 16 #include <linux/serial_core.h> 17 #include <linux/serial_reg.h> 18 #include <linux/slab.h> 19 #include <linux/string.h> 20 #include <linux/tty.h> 21 #include <linux/8250_pci.h> 22 23 #include <asm/byteorder.h> 24 25 #include "8250.h" 26 27 #define PCI_DEVICE_ID_COMMTECH_4224PCI335 0x0002 28 #define PCI_DEVICE_ID_COMMTECH_4222PCI335 0x0004 29 #define PCI_DEVICE_ID_COMMTECH_2324PCI335 0x000a 30 #define PCI_DEVICE_ID_COMMTECH_2328PCI335 0x000b 31 #define PCI_DEVICE_ID_COMMTECH_4224PCIE 0x0020 32 #define PCI_DEVICE_ID_COMMTECH_4228PCIE 0x0021 33 #define PCI_DEVICE_ID_COMMTECH_4222PCIE 0x0022 34 #define PCI_DEVICE_ID_EXAR_XR17V4358 0x4358 35 #define PCI_DEVICE_ID_EXAR_XR17V8358 0x8358 36 37 #define UART_EXAR_INT0 0x80 38 #define UART_EXAR_8XMODE 0x88 /* 8X sampling rate select */ 39 40 #define UART_EXAR_FCTR 0x08 /* Feature Control Register */ 41 #define UART_FCTR_EXAR_IRDA 0x10 /* IrDa data encode select */ 42 #define UART_FCTR_EXAR_485 0x20 /* Auto 485 half duplex dir ctl */ 43 #define UART_FCTR_EXAR_TRGA 0x00 /* FIFO trigger table A */ 44 #define UART_FCTR_EXAR_TRGB 0x60 /* FIFO trigger table B */ 45 #define UART_FCTR_EXAR_TRGC 0x80 /* FIFO trigger table C */ 46 #define UART_FCTR_EXAR_TRGD 0xc0 /* FIFO trigger table D programmable */ 47 48 #define UART_EXAR_TXTRG 0x0a /* Tx FIFO trigger level write-only */ 49 #define UART_EXAR_RXTRG 0x0b /* Rx FIFO trigger level write-only */ 50 51 #define UART_EXAR_MPIOINT_7_0 0x8f /* MPIOINT[7:0] */ 52 #define UART_EXAR_MPIOLVL_7_0 0x90 /* MPIOLVL[7:0] */ 53 #define UART_EXAR_MPIO3T_7_0 0x91 /* MPIO3T[7:0] */ 54 #define UART_EXAR_MPIOINV_7_0 0x92 /* MPIOINV[7:0] */ 55 #define UART_EXAR_MPIOSEL_7_0 0x93 /* MPIOSEL[7:0] */ 56 #define UART_EXAR_MPIOOD_7_0 0x94 /* MPIOOD[7:0] */ 57 #define UART_EXAR_MPIOINT_15_8 0x95 /* MPIOINT[15:8] */ 58 #define UART_EXAR_MPIOLVL_15_8 0x96 /* MPIOLVL[15:8] */ 59 #define UART_EXAR_MPIO3T_15_8 0x97 /* MPIO3T[15:8] */ 60 #define UART_EXAR_MPIOINV_15_8 0x98 /* MPIOINV[15:8] */ 61 #define UART_EXAR_MPIOSEL_15_8 0x99 /* MPIOSEL[15:8] */ 62 #define UART_EXAR_MPIOOD_15_8 0x9a /* MPIOOD[15:8] */ 63 64 #define UART_EXAR_RS485_DLY(x) ((x) << 4) 65 66 /* 67 * IOT2040 MPIO wiring semantics: 68 * 69 * MPIO Port Function 70 * ---- ---- -------- 71 * 0 2 Mode bit 0 72 * 1 2 Mode bit 1 73 * 2 2 Terminate bus 74 * 3 - <reserved> 75 * 4 3 Mode bit 0 76 * 5 3 Mode bit 1 77 * 6 3 Terminate bus 78 * 7 - <reserved> 79 * 8 2 Enable 80 * 9 3 Enable 81 * 10 - Red LED 82 * 11..15 - <unused> 83 */ 84 85 /* IOT2040 MPIOs 0..7 */ 86 #define IOT2040_UART_MODE_RS232 0x01 87 #define IOT2040_UART_MODE_RS485 0x02 88 #define IOT2040_UART_MODE_RS422 0x03 89 #define IOT2040_UART_TERMINATE_BUS 0x04 90 91 #define IOT2040_UART1_MASK 0x0f 92 #define IOT2040_UART2_SHIFT 4 93 94 #define IOT2040_UARTS_DEFAULT_MODE 0x11 /* both RS232 */ 95 #define IOT2040_UARTS_GPIO_LO_MODE 0x88 /* reserved pins as input */ 96 97 /* IOT2040 MPIOs 8..15 */ 98 #define IOT2040_UARTS_ENABLE 0x03 99 #define IOT2040_UARTS_GPIO_HI_MODE 0xF8 /* enable & LED as outputs */ 100 101 struct exar8250; 102 103 struct exar8250_platform { 104 int (*rs485_config)(struct uart_port *, struct serial_rs485 *); 105 int (*register_gpio)(struct pci_dev *, struct uart_8250_port *); 106 }; 107 108 /** 109 * struct exar8250_board - board information 110 * @num_ports: number of serial ports 111 * @reg_shift: describes UART register mapping in PCI memory 112 * @setup: quirk run at ->probe() stage 113 * @exit: quirk run at ->remove() stage 114 */ 115 struct exar8250_board { 116 unsigned int num_ports; 117 unsigned int reg_shift; 118 int (*setup)(struct exar8250 *, struct pci_dev *, 119 struct uart_8250_port *, int); 120 void (*exit)(struct pci_dev *pcidev); 121 }; 122 123 struct exar8250 { 124 unsigned int nr; 125 struct exar8250_board *board; 126 void __iomem *virt; 127 int line[0]; 128 }; 129 130 static int default_setup(struct exar8250 *priv, struct pci_dev *pcidev, 131 int idx, unsigned int offset, 132 struct uart_8250_port *port) 133 { 134 const struct exar8250_board *board = priv->board; 135 unsigned int bar = 0; 136 137 port->port.iotype = UPIO_MEM; 138 port->port.mapbase = pci_resource_start(pcidev, bar) + offset; 139 port->port.membase = priv->virt + offset; 140 port->port.regshift = board->reg_shift; 141 142 return 0; 143 } 144 145 static int 146 pci_fastcom335_setup(struct exar8250 *priv, struct pci_dev *pcidev, 147 struct uart_8250_port *port, int idx) 148 { 149 unsigned int offset = idx * 0x200; 150 unsigned int baud = 1843200; 151 u8 __iomem *p; 152 int err; 153 154 port->port.uartclk = baud * 16; 155 156 err = default_setup(priv, pcidev, idx, offset, port); 157 if (err) 158 return err; 159 160 p = port->port.membase; 161 162 writeb(0x00, p + UART_EXAR_8XMODE); 163 writeb(UART_FCTR_EXAR_TRGD, p + UART_EXAR_FCTR); 164 writeb(32, p + UART_EXAR_TXTRG); 165 writeb(32, p + UART_EXAR_RXTRG); 166 167 /* 168 * Setup Multipurpose Input/Output pins. 169 */ 170 if (idx == 0) { 171 switch (pcidev->device) { 172 case PCI_DEVICE_ID_COMMTECH_4222PCI335: 173 case PCI_DEVICE_ID_COMMTECH_4224PCI335: 174 writeb(0x78, p + UART_EXAR_MPIOLVL_7_0); 175 writeb(0x00, p + UART_EXAR_MPIOINV_7_0); 176 writeb(0x00, p + UART_EXAR_MPIOSEL_7_0); 177 break; 178 case PCI_DEVICE_ID_COMMTECH_2324PCI335: 179 case PCI_DEVICE_ID_COMMTECH_2328PCI335: 180 writeb(0x00, p + UART_EXAR_MPIOLVL_7_0); 181 writeb(0xc0, p + UART_EXAR_MPIOINV_7_0); 182 writeb(0xc0, p + UART_EXAR_MPIOSEL_7_0); 183 break; 184 } 185 writeb(0x00, p + UART_EXAR_MPIOINT_7_0); 186 writeb(0x00, p + UART_EXAR_MPIO3T_7_0); 187 writeb(0x00, p + UART_EXAR_MPIOOD_7_0); 188 } 189 190 return 0; 191 } 192 193 static int 194 pci_connect_tech_setup(struct exar8250 *priv, struct pci_dev *pcidev, 195 struct uart_8250_port *port, int idx) 196 { 197 unsigned int offset = idx * 0x200; 198 unsigned int baud = 1843200; 199 200 port->port.uartclk = baud * 16; 201 return default_setup(priv, pcidev, idx, offset, port); 202 } 203 204 static int 205 pci_xr17c154_setup(struct exar8250 *priv, struct pci_dev *pcidev, 206 struct uart_8250_port *port, int idx) 207 { 208 unsigned int offset = idx * 0x200; 209 unsigned int baud = 921600; 210 211 port->port.uartclk = baud * 16; 212 return default_setup(priv, pcidev, idx, offset, port); 213 } 214 215 static void setup_gpio(struct pci_dev *pcidev, u8 __iomem *p) 216 { 217 /* 218 * The Commtech adapters required the MPIOs to be driven low. The Exar 219 * devices will export them as GPIOs, so we pre-configure them safely 220 * as inputs. 221 */ 222 u8 dir = pcidev->vendor == PCI_VENDOR_ID_EXAR ? 0xff : 0x00; 223 224 writeb(0x00, p + UART_EXAR_MPIOINT_7_0); 225 writeb(0x00, p + UART_EXAR_MPIOLVL_7_0); 226 writeb(0x00, p + UART_EXAR_MPIO3T_7_0); 227 writeb(0x00, p + UART_EXAR_MPIOINV_7_0); 228 writeb(dir, p + UART_EXAR_MPIOSEL_7_0); 229 writeb(0x00, p + UART_EXAR_MPIOOD_7_0); 230 writeb(0x00, p + UART_EXAR_MPIOINT_15_8); 231 writeb(0x00, p + UART_EXAR_MPIOLVL_15_8); 232 writeb(0x00, p + UART_EXAR_MPIO3T_15_8); 233 writeb(0x00, p + UART_EXAR_MPIOINV_15_8); 234 writeb(dir, p + UART_EXAR_MPIOSEL_15_8); 235 writeb(0x00, p + UART_EXAR_MPIOOD_15_8); 236 } 237 238 static void * 239 __xr17v35x_register_gpio(struct pci_dev *pcidev, 240 const struct property_entry *properties) 241 { 242 struct platform_device *pdev; 243 244 pdev = platform_device_alloc("gpio_exar", PLATFORM_DEVID_AUTO); 245 if (!pdev) 246 return NULL; 247 248 pdev->dev.parent = &pcidev->dev; 249 ACPI_COMPANION_SET(&pdev->dev, ACPI_COMPANION(&pcidev->dev)); 250 251 if (platform_device_add_properties(pdev, properties) < 0 || 252 platform_device_add(pdev) < 0) { 253 platform_device_put(pdev); 254 return NULL; 255 } 256 257 return pdev; 258 } 259 260 static const struct property_entry exar_gpio_properties[] = { 261 PROPERTY_ENTRY_U32("exar,first-pin", 0), 262 PROPERTY_ENTRY_U32("ngpios", 16), 263 { } 264 }; 265 266 static int xr17v35x_register_gpio(struct pci_dev *pcidev, 267 struct uart_8250_port *port) 268 { 269 if (pcidev->vendor == PCI_VENDOR_ID_EXAR) 270 port->port.private_data = 271 __xr17v35x_register_gpio(pcidev, exar_gpio_properties); 272 273 return 0; 274 } 275 276 static int generic_rs485_config(struct uart_port *port, 277 struct serial_rs485 *rs485) 278 { 279 bool is_rs485 = !!(rs485->flags & SER_RS485_ENABLED); 280 u8 __iomem *p = port->membase; 281 u8 value; 282 283 value = readb(p + UART_EXAR_FCTR); 284 if (is_rs485) 285 value |= UART_FCTR_EXAR_485; 286 else 287 value &= ~UART_FCTR_EXAR_485; 288 289 writeb(value, p + UART_EXAR_FCTR); 290 291 if (is_rs485) 292 writeb(UART_EXAR_RS485_DLY(4), p + UART_MSR); 293 294 port->rs485 = *rs485; 295 296 return 0; 297 } 298 299 static const struct exar8250_platform exar8250_default_platform = { 300 .register_gpio = xr17v35x_register_gpio, 301 .rs485_config = generic_rs485_config, 302 }; 303 304 static int iot2040_rs485_config(struct uart_port *port, 305 struct serial_rs485 *rs485) 306 { 307 bool is_rs485 = !!(rs485->flags & SER_RS485_ENABLED); 308 u8 __iomem *p = port->membase; 309 u8 mask = IOT2040_UART1_MASK; 310 u8 mode, value; 311 312 if (is_rs485) { 313 if (rs485->flags & SER_RS485_RX_DURING_TX) 314 mode = IOT2040_UART_MODE_RS422; 315 else 316 mode = IOT2040_UART_MODE_RS485; 317 318 if (rs485->flags & SER_RS485_TERMINATE_BUS) 319 mode |= IOT2040_UART_TERMINATE_BUS; 320 } else { 321 mode = IOT2040_UART_MODE_RS232; 322 } 323 324 if (port->line == 3) { 325 mask <<= IOT2040_UART2_SHIFT; 326 mode <<= IOT2040_UART2_SHIFT; 327 } 328 329 value = readb(p + UART_EXAR_MPIOLVL_7_0); 330 value &= ~mask; 331 value |= mode; 332 writeb(value, p + UART_EXAR_MPIOLVL_7_0); 333 334 return generic_rs485_config(port, rs485); 335 } 336 337 static const struct property_entry iot2040_gpio_properties[] = { 338 PROPERTY_ENTRY_U32("exar,first-pin", 10), 339 PROPERTY_ENTRY_U32("ngpios", 1), 340 { } 341 }; 342 343 static int iot2040_register_gpio(struct pci_dev *pcidev, 344 struct uart_8250_port *port) 345 { 346 u8 __iomem *p = port->port.membase; 347 348 writeb(IOT2040_UARTS_DEFAULT_MODE, p + UART_EXAR_MPIOLVL_7_0); 349 writeb(IOT2040_UARTS_GPIO_LO_MODE, p + UART_EXAR_MPIOSEL_7_0); 350 writeb(IOT2040_UARTS_ENABLE, p + UART_EXAR_MPIOLVL_15_8); 351 writeb(IOT2040_UARTS_GPIO_HI_MODE, p + UART_EXAR_MPIOSEL_15_8); 352 353 port->port.private_data = 354 __xr17v35x_register_gpio(pcidev, iot2040_gpio_properties); 355 356 return 0; 357 } 358 359 static const struct exar8250_platform iot2040_platform = { 360 .rs485_config = iot2040_rs485_config, 361 .register_gpio = iot2040_register_gpio, 362 }; 363 364 static const struct dmi_system_id exar_platforms[] = { 365 { 366 .matches = { 367 DMI_EXACT_MATCH(DMI_BOARD_NAME, "SIMATIC IOT2000"), 368 DMI_EXACT_MATCH(DMI_BOARD_ASSET_TAG, 369 "6ES7647-0AA00-1YA2"), 370 }, 371 .driver_data = (void *)&iot2040_platform, 372 }, 373 {} 374 }; 375 376 static int 377 pci_xr17v35x_setup(struct exar8250 *priv, struct pci_dev *pcidev, 378 struct uart_8250_port *port, int idx) 379 { 380 const struct exar8250_platform *platform; 381 const struct dmi_system_id *dmi_match; 382 unsigned int offset = idx * 0x400; 383 unsigned int baud = 7812500; 384 u8 __iomem *p; 385 int ret; 386 387 dmi_match = dmi_first_match(exar_platforms); 388 if (dmi_match) 389 platform = dmi_match->driver_data; 390 else 391 platform = &exar8250_default_platform; 392 393 port->port.uartclk = baud * 16; 394 port->port.rs485_config = platform->rs485_config; 395 396 /* 397 * Setup the UART clock for the devices on expansion slot to 398 * half the clock speed of the main chip (which is 125MHz) 399 */ 400 if (idx >= 8) 401 port->port.uartclk /= 2; 402 403 ret = default_setup(priv, pcidev, idx, offset, port); 404 if (ret) 405 return ret; 406 407 p = port->port.membase; 408 409 writeb(0x00, p + UART_EXAR_8XMODE); 410 writeb(UART_FCTR_EXAR_TRGD, p + UART_EXAR_FCTR); 411 writeb(128, p + UART_EXAR_TXTRG); 412 writeb(128, p + UART_EXAR_RXTRG); 413 414 if (idx == 0) { 415 /* Setup Multipurpose Input/Output pins. */ 416 setup_gpio(pcidev, p); 417 418 ret = platform->register_gpio(pcidev, port); 419 } 420 421 return ret; 422 } 423 424 static void pci_xr17v35x_exit(struct pci_dev *pcidev) 425 { 426 struct exar8250 *priv = pci_get_drvdata(pcidev); 427 struct uart_8250_port *port = serial8250_get_port(priv->line[0]); 428 struct platform_device *pdev = port->port.private_data; 429 430 platform_device_unregister(pdev); 431 port->port.private_data = NULL; 432 } 433 434 /* 435 * These Exar UARTs have an extra interrupt indicator that could fire for a 436 * few interrupts that are not presented/cleared through IIR. One of which is 437 * a wakeup interrupt when coming out of sleep. These interrupts are only 438 * cleared by reading global INT0 or INT1 registers as interrupts are 439 * associated with channel 0. The INT[3:0] registers _are_ accessible from each 440 * channel's address space, but for the sake of bus efficiency we register a 441 * dedicated handler at the PCI device level to handle them. 442 */ 443 static irqreturn_t exar_misc_handler(int irq, void *data) 444 { 445 struct exar8250 *priv = data; 446 447 /* Clear all PCI interrupts by reading INT0. No effect on IIR */ 448 readb(priv->virt + UART_EXAR_INT0); 449 450 /* Clear INT0 for Expansion Interface slave ports, too */ 451 if (priv->board->num_ports > 8) 452 readb(priv->virt + 0x2000 + UART_EXAR_INT0); 453 454 return IRQ_HANDLED; 455 } 456 457 static int 458 exar_pci_probe(struct pci_dev *pcidev, const struct pci_device_id *ent) 459 { 460 unsigned int nr_ports, i, bar = 0, maxnr; 461 struct exar8250_board *board; 462 struct uart_8250_port uart; 463 struct exar8250 *priv; 464 int rc; 465 466 board = (struct exar8250_board *)ent->driver_data; 467 if (!board) 468 return -EINVAL; 469 470 rc = pcim_enable_device(pcidev); 471 if (rc) 472 return rc; 473 474 maxnr = pci_resource_len(pcidev, bar) >> (board->reg_shift + 3); 475 476 nr_ports = board->num_ports ? board->num_ports : pcidev->device & 0x0f; 477 478 priv = devm_kzalloc(&pcidev->dev, sizeof(*priv) + 479 sizeof(unsigned int) * nr_ports, 480 GFP_KERNEL); 481 if (!priv) 482 return -ENOMEM; 483 484 priv->board = board; 485 priv->virt = pcim_iomap(pcidev, bar, 0); 486 if (!priv->virt) 487 return -ENOMEM; 488 489 pci_set_master(pcidev); 490 491 rc = pci_alloc_irq_vectors(pcidev, 1, 1, PCI_IRQ_ALL_TYPES); 492 if (rc < 0) 493 return rc; 494 495 memset(&uart, 0, sizeof(uart)); 496 uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ 497 | UPF_EXAR_EFR; 498 uart.port.irq = pci_irq_vector(pcidev, 0); 499 uart.port.dev = &pcidev->dev; 500 501 rc = devm_request_irq(&pcidev->dev, uart.port.irq, exar_misc_handler, 502 IRQF_SHARED, "exar_uart", priv); 503 if (rc) 504 return rc; 505 506 for (i = 0; i < nr_ports && i < maxnr; i++) { 507 rc = board->setup(priv, pcidev, &uart, i); 508 if (rc) { 509 dev_err(&pcidev->dev, "Failed to setup port %u\n", i); 510 break; 511 } 512 513 dev_dbg(&pcidev->dev, "Setup PCI port: port %lx, irq %d, type %d\n", 514 uart.port.iobase, uart.port.irq, uart.port.iotype); 515 516 priv->line[i] = serial8250_register_8250_port(&uart); 517 if (priv->line[i] < 0) { 518 dev_err(&pcidev->dev, 519 "Couldn't register serial port %lx, irq %d, type %d, error %d\n", 520 uart.port.iobase, uart.port.irq, 521 uart.port.iotype, priv->line[i]); 522 break; 523 } 524 } 525 priv->nr = i; 526 pci_set_drvdata(pcidev, priv); 527 return 0; 528 } 529 530 static void exar_pci_remove(struct pci_dev *pcidev) 531 { 532 struct exar8250 *priv = pci_get_drvdata(pcidev); 533 unsigned int i; 534 535 for (i = 0; i < priv->nr; i++) 536 serial8250_unregister_port(priv->line[i]); 537 538 if (priv->board->exit) 539 priv->board->exit(pcidev); 540 } 541 542 static int __maybe_unused exar_suspend(struct device *dev) 543 { 544 struct pci_dev *pcidev = to_pci_dev(dev); 545 struct exar8250 *priv = pci_get_drvdata(pcidev); 546 unsigned int i; 547 548 for (i = 0; i < priv->nr; i++) 549 if (priv->line[i] >= 0) 550 serial8250_suspend_port(priv->line[i]); 551 552 /* Ensure that every init quirk is properly torn down */ 553 if (priv->board->exit) 554 priv->board->exit(pcidev); 555 556 return 0; 557 } 558 559 static int __maybe_unused exar_resume(struct device *dev) 560 { 561 struct pci_dev *pcidev = to_pci_dev(dev); 562 struct exar8250 *priv = pci_get_drvdata(pcidev); 563 unsigned int i; 564 565 for (i = 0; i < priv->nr; i++) 566 if (priv->line[i] >= 0) 567 serial8250_resume_port(priv->line[i]); 568 569 return 0; 570 } 571 572 static SIMPLE_DEV_PM_OPS(exar_pci_pm, exar_suspend, exar_resume); 573 574 static const struct exar8250_board pbn_fastcom335_2 = { 575 .num_ports = 2, 576 .setup = pci_fastcom335_setup, 577 }; 578 579 static const struct exar8250_board pbn_fastcom335_4 = { 580 .num_ports = 4, 581 .setup = pci_fastcom335_setup, 582 }; 583 584 static const struct exar8250_board pbn_fastcom335_8 = { 585 .num_ports = 8, 586 .setup = pci_fastcom335_setup, 587 }; 588 589 static const struct exar8250_board pbn_connect = { 590 .setup = pci_connect_tech_setup, 591 }; 592 593 static const struct exar8250_board pbn_exar_ibm_saturn = { 594 .num_ports = 1, 595 .setup = pci_xr17c154_setup, 596 }; 597 598 static const struct exar8250_board pbn_exar_XR17C15x = { 599 .setup = pci_xr17c154_setup, 600 }; 601 602 static const struct exar8250_board pbn_exar_XR17V35x = { 603 .setup = pci_xr17v35x_setup, 604 .exit = pci_xr17v35x_exit, 605 }; 606 607 static const struct exar8250_board pbn_exar_XR17V4358 = { 608 .num_ports = 12, 609 .setup = pci_xr17v35x_setup, 610 .exit = pci_xr17v35x_exit, 611 }; 612 613 static const struct exar8250_board pbn_exar_XR17V8358 = { 614 .num_ports = 16, 615 .setup = pci_xr17v35x_setup, 616 .exit = pci_xr17v35x_exit, 617 }; 618 619 #define CONNECT_DEVICE(devid, sdevid, bd) { \ 620 PCI_DEVICE_SUB( \ 621 PCI_VENDOR_ID_EXAR, \ 622 PCI_DEVICE_ID_EXAR_##devid, \ 623 PCI_SUBVENDOR_ID_CONNECT_TECH, \ 624 PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_##sdevid), 0, 0, \ 625 (kernel_ulong_t)&bd \ 626 } 627 628 #define EXAR_DEVICE(vend, devid, bd) { \ 629 PCI_VDEVICE(vend, PCI_DEVICE_ID_##devid), (kernel_ulong_t)&bd \ 630 } 631 632 #define IBM_DEVICE(devid, sdevid, bd) { \ 633 PCI_DEVICE_SUB( \ 634 PCI_VENDOR_ID_EXAR, \ 635 PCI_DEVICE_ID_EXAR_##devid, \ 636 PCI_VENDOR_ID_IBM, \ 637 PCI_SUBDEVICE_ID_IBM_##sdevid), 0, 0, \ 638 (kernel_ulong_t)&bd \ 639 } 640 641 static const struct pci_device_id exar_pci_tbl[] = { 642 CONNECT_DEVICE(XR17C152, UART_2_232, pbn_connect), 643 CONNECT_DEVICE(XR17C154, UART_4_232, pbn_connect), 644 CONNECT_DEVICE(XR17C158, UART_8_232, pbn_connect), 645 CONNECT_DEVICE(XR17C152, UART_1_1, pbn_connect), 646 CONNECT_DEVICE(XR17C154, UART_2_2, pbn_connect), 647 CONNECT_DEVICE(XR17C158, UART_4_4, pbn_connect), 648 CONNECT_DEVICE(XR17C152, UART_2, pbn_connect), 649 CONNECT_DEVICE(XR17C154, UART_4, pbn_connect), 650 CONNECT_DEVICE(XR17C158, UART_8, pbn_connect), 651 CONNECT_DEVICE(XR17C152, UART_2_485, pbn_connect), 652 CONNECT_DEVICE(XR17C154, UART_4_485, pbn_connect), 653 CONNECT_DEVICE(XR17C158, UART_8_485, pbn_connect), 654 655 IBM_DEVICE(XR17C152, SATURN_SERIAL_ONE_PORT, pbn_exar_ibm_saturn), 656 657 /* Exar Corp. XR17C15[248] Dual/Quad/Octal UART */ 658 EXAR_DEVICE(EXAR, EXAR_XR17C152, pbn_exar_XR17C15x), 659 EXAR_DEVICE(EXAR, EXAR_XR17C154, pbn_exar_XR17C15x), 660 EXAR_DEVICE(EXAR, EXAR_XR17C158, pbn_exar_XR17C15x), 661 662 /* Exar Corp. XR17V[48]35[248] Dual/Quad/Octal/Hexa PCIe UARTs */ 663 EXAR_DEVICE(EXAR, EXAR_XR17V352, pbn_exar_XR17V35x), 664 EXAR_DEVICE(EXAR, EXAR_XR17V354, pbn_exar_XR17V35x), 665 EXAR_DEVICE(EXAR, EXAR_XR17V358, pbn_exar_XR17V35x), 666 EXAR_DEVICE(EXAR, EXAR_XR17V4358, pbn_exar_XR17V4358), 667 EXAR_DEVICE(EXAR, EXAR_XR17V8358, pbn_exar_XR17V8358), 668 EXAR_DEVICE(COMMTECH, COMMTECH_4222PCIE, pbn_exar_XR17V35x), 669 EXAR_DEVICE(COMMTECH, COMMTECH_4224PCIE, pbn_exar_XR17V35x), 670 EXAR_DEVICE(COMMTECH, COMMTECH_4228PCIE, pbn_exar_XR17V35x), 671 672 EXAR_DEVICE(COMMTECH, COMMTECH_4222PCI335, pbn_fastcom335_2), 673 EXAR_DEVICE(COMMTECH, COMMTECH_4224PCI335, pbn_fastcom335_4), 674 EXAR_DEVICE(COMMTECH, COMMTECH_2324PCI335, pbn_fastcom335_4), 675 EXAR_DEVICE(COMMTECH, COMMTECH_2328PCI335, pbn_fastcom335_8), 676 { 0, } 677 }; 678 MODULE_DEVICE_TABLE(pci, exar_pci_tbl); 679 680 static struct pci_driver exar_pci_driver = { 681 .name = "exar_serial", 682 .probe = exar_pci_probe, 683 .remove = exar_pci_remove, 684 .driver = { 685 .pm = &exar_pci_pm, 686 }, 687 .id_table = exar_pci_tbl, 688 }; 689 module_pci_driver(exar_pci_driver); 690 691 MODULE_LICENSE("GPL"); 692 MODULE_DESCRIPTION("Exar Serial Driver"); 693 MODULE_AUTHOR("Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>"); 694