drivers/parport/parport_serial.c - kernel/msm-4.9 - Gitiles

 /*
  * Support for common PCI multi-I/O cards (which is most of them)
  *
  * Copyright (C) 2001  Tim Waugh <twaugh@redhat.com>
  *
  * 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.
  *
  *
  * Multi-function PCI cards are supposed to present separate logical
  * devices on the bus.  A common thing to do seems to be to just use
  * one logical device with lots of base address registers for both
  * parallel ports and serial ports.  This driver is for dealing with
  * that.
  *
  */

 #include <linux/types.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/parport.h>
 #include <linux/parport_pc.h>
 #include <linux/serial.h>
 #include <linux/serialP.h>
 #include <linux/list.h>
 #include <linux/8250_pci.h>

 #include <asm/serial.h>

 enum parport_pc_pci_cards {
 	titan_110l = 0,
 	titan_210l,
 	netmos_9xx5_combo,
 	netmos_9855,
 	avlab_1s1p,
 	avlab_1s1p_650,
 	avlab_1s1p_850,
 	avlab_1s2p,
 	avlab_1s2p_650,
 	avlab_1s2p_850,
 	avlab_2s1p,
 	avlab_2s1p_650,
 	avlab_2s1p_850,
 	siig_1s1p_10x,
 	siig_2s1p_10x,
 	siig_2p1s_20x,
 	siig_1s1p_20x,
 	siig_2s1p_20x,
 };

 /* each element directly indexed from enum list, above */
 struct parport_pc_pci {
 	int numports;
 	struct { /* BAR (base address registers) numbers in the config
                     space header */
 		int lo;
 		int hi; /* -1 if not there, >6 for offset-method (max
                            BAR is 6) */
 	} addr[4];

 	/* If set, this is called immediately after pci_enable_device.
 	 * If it returns non-zero, no probing will take place and the
 	 * ports will not be used. */
 	int (*preinit_hook) (struct pci_dev *pdev, struct parport_pc_pci *card,
 				int autoirq, int autodma);

 	/* If set, this is called after probing for ports.  If 'failed'
 	 * is non-zero we couldn't use any of the ports. */
 	void (*postinit_hook) (struct pci_dev *pdev,
 				struct parport_pc_pci *card, int failed);
 };

 static int __devinit netmos_parallel_init(struct pci_dev *dev, struct parport_pc_pci *card, int autoirq, int autodma)
 {
 	/*
 	 * Netmos uses the subdevice ID to indicate the number of parallel
 	 * and serial ports.  The form is 0x00PS, where <P> is the number of
 	 * parallel ports and <S> is the number of serial ports.
 	 */
 	card->numports = (dev->subsystem_device & 0xf0) >> 4;
 	return 0;
 }

 static struct parport_pc_pci cards[] __devinitdata = {
 	/* titan_110l */		{ 1, { { 3, -1 }, } },
 	/* titan_210l */		{ 1, { { 3, -1 }, } },
 	/* netmos_9xx5_combo */		{ 1, { { 2, -1 }, }, netmos_parallel_init },
 	/* netmos_9855 */		{ 1, { { 0, -1 }, }, netmos_parallel_init },
 	/* avlab_1s1p     */		{ 1, { { 1, 2}, } },
 	/* avlab_1s1p_650 */		{ 1, { { 1, 2}, } },
 	/* avlab_1s1p_850 */		{ 1, { { 1, 2}, } },
 	/* avlab_1s2p     */		{ 2, { { 1, 2}, { 3, 4 },} },
 	/* avlab_1s2p_650 */		{ 2, { { 1, 2}, { 3, 4 },} },
 	/* avlab_1s2p_850 */		{ 2, { { 1, 2}, { 3, 4 },} },
 	/* avlab_2s1p     */		{ 1, { { 2, 3}, } },
 	/* avlab_2s1p_650 */		{ 1, { { 2, 3}, } },
 	/* avlab_2s1p_850 */		{ 1, { { 2, 3}, } },
 	/* siig_1s1p_10x */		{ 1, { { 3, 4 }, } },
 	/* siig_2s1p_10x */		{ 1, { { 4, 5 }, } },
 	/* siig_2p1s_20x */		{ 2, { { 1, 2 }, { 3, 4 }, } },
 	/* siig_1s1p_20x */		{ 1, { { 1, 2 }, } },
 	/* siig_2s1p_20x */		{ 1, { { 2, 3 }, } },
 };

 static struct pci_device_id parport_serial_pci_tbl[] = {
 	/* PCI cards */
 	{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l },
 	{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l },
 	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
 	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
 	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
 	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
 	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
 	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
 	/* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
 	{ 0x14db, 0x2110, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p},
 	{ 0x14db, 0x2111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_650},
 	{ 0x14db, 0x2112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_850},
 	{ 0x14db, 0x2140, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p},
 	{ 0x14db, 0x2141, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p_650},
 	{ 0x14db, 0x2142, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p_850},
 	{ 0x14db, 0x2160, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p},
 	{ 0x14db, 0x2161, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p_650},
 	{ 0x14db, 0x2162, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p_850},
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
 	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },

 	{ 0, } /* terminate list */
 };
 MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);

 struct pci_board_no_ids {
 	int flags;
 	int num_ports;
 	int base_baud;
 	int uart_offset;
 	int reg_shift;
 	int (*init_fn)(struct pci_dev *dev, struct pci_board_no_ids *board,
 			int enable);
 	int first_uart_offset;
 };

 static int __devinit siig10x_init_fn(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
 {
 	return pci_siig10x_fn(dev, enable);
 }

 static int __devinit siig20x_init_fn(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
 {
 	return pci_siig20x_fn(dev, enable);
 }

 static int __devinit netmos_serial_init(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
 {
 	board->num_ports = dev->subsystem_device & 0xf;
 	return 0;
 }

 static struct pci_board_no_ids pci_boards[] __devinitdata = {
 	/*
 	 * PCI Flags, Number of Ports, Base (Maximum) Baud Rate,
 	 * Offset to get to next UART's registers,
 	 * Register shift to use for memory-mapped I/O,
 	 * Initialization function, first UART offset
 	 */

 // Cards not tested are marked n/t
 // If you have one of these cards and it works for you, please tell me..

 /* titan_110l */	{ SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 1, 921600 },
 /* titan_210l */	{ SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 2, 921600 },
 /* netmos_9xx5_combo */	{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
 /* netmos_9855 */	{ SPCI_FL_BASE2 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
 /* avlab_1s1p (n/t) */	{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
 /* avlab_1s1p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
 /* avlab_1s1p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
 /* avlab_1s2p (n/t) */	{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
 /* avlab_1s2p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
 /* avlab_1s2p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
 /* avlab_2s1p (n/t) */	{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
 /* avlab_2s1p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
 /* avlab_2s1p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
 /* siig_1s1p_10x */	{ SPCI_FL_BASE2, 1, 460800, 0, 0, siig10x_init_fn },
 /* siig_2s1p_10x */	{ SPCI_FL_BASE2, 1, 921600, 0, 0, siig10x_init_fn },
 /* siig_2p1s_20x */	{ SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
 /* siig_1s1p_20x */	{ SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
 /* siig_2s1p_20x */	{ SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
 };

 struct parport_serial_private {
 	int num_ser;
 	int line[20];
 	struct pci_board_no_ids ser;
 	int num_par;
 	struct parport *port[PARPORT_MAX];
 	struct parport_pc_pci par;
 };

 static int __devinit get_pci_port (struct pci_dev *dev,
 				   struct pci_board_no_ids *board,
 				   struct serial_struct *req,
 				   int idx)
 {
 	unsigned long port;
 	int base_idx;
 	int max_port;
 	int offset;

 	base_idx = SPCI_FL_GET_BASE(board->flags);
 	if (board->flags & SPCI_FL_BASE_TABLE)
 		base_idx += idx;

 	if (board->flags & SPCI_FL_REGION_SZ_CAP) {
 		max_port = pci_resource_len(dev, base_idx) / 8;
 		if (idx >= max_port)
 			return 1;
 	}

 	offset = board->first_uart_offset;

 	/* Timedia/SUNIX uses a mixture of BARs and offsets */
 	/* Ugh, this is ugly as all hell --- TYT */
 	if(dev->vendor == PCI_VENDOR_ID_TIMEDIA )  /* 0x1409 */
 		switch(idx) {
 			case 0: base_idx=0;
 				break;
 			case 1: base_idx=0; offset=8;
 				break;
 			case 2: base_idx=1;
 				break;
 			case 3: base_idx=1; offset=8;
 				break;
 			case 4: /* BAR 2*/
 			case 5: /* BAR 3 */
 			case 6: /* BAR 4*/
 			case 7: base_idx=idx-2; /* BAR 5*/
 		}

 	port =  pci_resource_start(dev, base_idx) + offset;

 	if ((board->flags & SPCI_FL_BASE_TABLE) == 0)
 		port += idx * (board->uart_offset ? board->uart_offset : 8);

 	if (pci_resource_flags (dev, base_idx) & IORESOURCE_IO) {
 		int high_bits_offset = ((sizeof(long)-sizeof(int))*8);
 		req->port = port;
 		if (high_bits_offset)
 			req->port_high = port >> high_bits_offset;
 		else
 			req->port_high = 0;
 		return 0;
 	}
 	req->io_type = SERIAL_IO_MEM;
 	req->iomem_base = ioremap(port, board->uart_offset);
 	req->iomem_reg_shift = board->reg_shift;
 	req->port = 0;
 	return req->iomem_base ? 0 : 1;
 }

 /* Register the serial port(s) of a PCI card. */
 static int __devinit serial_register (struct pci_dev *dev,
 				      const struct pci_device_id *id)
 {
 	struct pci_board_no_ids *board;
 	struct parport_serial_private *priv = pci_get_drvdata (dev);
 	struct serial_struct serial_req;
 	int base_baud;
 	int k;
 	int success = 0;

 	priv->ser = pci_boards[id->driver_data];
 	board = &priv->ser;
 	if (board->init_fn && ((board->init_fn) (dev, board, 1) != 0))
 		return 1;

 	base_baud = board->base_baud;
 	if (!base_baud)
 		base_baud = BASE_BAUD;
 	memset (&serial_req, 0, sizeof (serial_req));

 	for (k = 0; k < board->num_ports; k++) {
 		int line;

 		if (priv->num_ser == ARRAY_SIZE (priv->line)) {
 			printk (KERN_WARNING
 				"parport_serial: %s: only %u serial lines "
 				"supported (%d reported)\n", pci_name (dev),
 				ARRAY_SIZE (priv->line), board->num_ports);
 			break;
 		}

 		serial_req.irq = dev->irq;
 		if (get_pci_port (dev, board, &serial_req, k))
 			break;
 		serial_req.flags = ASYNC_SKIP_TEST | ASYNC_AUTOPROBE;
 		serial_req.baud_base = base_baud;
 		line = register_serial (&serial_req);
 		if (line < 0) {
 			printk (KERN_DEBUG
 				"parport_serial: register_serial failed\n");
 			continue;
 		}
 		priv->line[priv->num_ser++] = line;
 		success = 1;
 	}

 	return success ? 0 : 1;
 }

 /* Register the parallel port(s) of a PCI card. */
 static int __devinit parport_register (struct pci_dev *dev,
 				       const struct pci_device_id *id)
 {
 	struct parport_pc_pci *card;
 	struct parport_serial_private *priv = pci_get_drvdata (dev);
 	int i = id->driver_data, n;
 	int success = 0;

 	priv->par = cards[id->driver_data];
 	card = &priv->par;
 	if (card->preinit_hook &&
 	    card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE))
 		return -ENODEV;

 	for (n = 0; n < card->numports; n++) {
 		struct parport *port;
 		int lo = card->addr[n].lo;
 		int hi = card->addr[n].hi;
 		unsigned long io_lo, io_hi;

 		if (priv->num_par == ARRAY_SIZE (priv->port)) {
 			printk (KERN_WARNING
 				"parport_serial: %s: only %u parallel ports "
 				"supported (%d reported)\n", pci_name (dev),
 				ARRAY_SIZE (priv->port), card->numports);
 			break;
 		}

 		io_lo = pci_resource_start (dev, lo);
 		io_hi = 0;
 		if ((hi >= 0) && (hi <= 6))
 			io_hi = pci_resource_start (dev, hi);
 		else if (hi > 6)
 			io_lo += hi; /* Reinterpret the meaning of
                                         "hi" as an offset (see SYBA
                                         def.) */
 		/* TODO: test if sharing interrupts works */
 		printk (KERN_DEBUG "PCI parallel port detected: %04x:%04x, "
 			"I/O at %#lx(%#lx)\n",
 			parport_serial_pci_tbl[i].vendor,
 			parport_serial_pci_tbl[i].device, io_lo, io_hi);
 		port = parport_pc_probe_port (io_lo, io_hi, PARPORT_IRQ_NONE,
 					      PARPORT_DMA_NONE, dev);
 		if (port) {
 			priv->port[priv->num_par++] = port;
 			success = 1;
 		}
 	}

 	if (card->postinit_hook)
 		card->postinit_hook (dev, card, !success);

 	return success ? 0 : 1;
 }

 static int __devinit parport_serial_pci_probe (struct pci_dev *dev,
 					       const struct pci_device_id *id)
 {
 	struct parport_serial_private *priv;
 	int err;

 	priv = kmalloc (sizeof *priv, GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 	priv->num_ser = priv->num_par = 0;
 	pci_set_drvdata (dev, priv);

 	err = pci_enable_device (dev);
 	if (err) {
 		pci_set_drvdata (dev, NULL);
 		kfree (priv);
 		return err;
 	}

 	if (parport_register (dev, id)) {
 		pci_set_drvdata (dev, NULL);
 		kfree (priv);
 		return -ENODEV;
 	}

 	if (serial_register (dev, id)) {
 		int i;
 		for (i = 0; i < priv->num_par; i++)
 			parport_pc_unregister_port (priv->port[i]);
 		pci_set_drvdata (dev, NULL);
 		kfree (priv);
 		return -ENODEV;
 	}

 	return 0;
 }

 static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
 {
 	struct parport_serial_private *priv = pci_get_drvdata (dev);
 	int i;

 	// Serial ports
 	for (i = 0; i < priv->num_ser; i++) {
 		unregister_serial (priv->line[i]);

 		if (priv->ser.init_fn)
 			(priv->ser.init_fn) (dev, &priv->ser, 0);
 	}
 	pci_set_drvdata (dev, NULL);

 	// Parallel ports
 	for (i = 0; i < priv->num_par; i++)
 		parport_pc_unregister_port (priv->port[i]);

 	kfree (priv);
 	return;
 }

 static struct pci_driver parport_serial_pci_driver = {
 	.name		= "parport_serial",
 	.id_table	= parport_serial_pci_tbl,
 	.probe		= parport_serial_pci_probe,
 	.remove		= __devexit_p(parport_serial_pci_remove),
 };


 static int __init parport_serial_init (void)
 {
 	return pci_module_init (&parport_serial_pci_driver);
 }

 static void __exit parport_serial_exit (void)
 {
 	pci_unregister_driver (&parport_serial_pci_driver);
 	return;
 }

 MODULE_AUTHOR("Tim Waugh <twaugh@redhat.com>");
 MODULE_DESCRIPTION("Driver for common parallel+serial multi-I/O PCI cards");
 MODULE_LICENSE("GPL");

 module_init(parport_serial_init);
 module_exit(parport_serial_exit);
	/*
	* Support for common PCI multi-I/O cards (which is most of them)
	*
	* Copyright (C) 2001 Tim Waugh <twaugh@redhat.com>
	*
	* 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.
	*
	*
	* Multi-function PCI cards are supposed to present separate logical
	* devices on the bus. A common thing to do seems to be to just use
	* one logical device with lots of base address registers for both
	* parallel ports and serial ports. This driver is for dealing with
	* that.
	*
	*/

	#include <linux/types.h>
	#include <linux/module.h>
	#include <linux/init.h>
	#include <linux/pci.h>
	#include <linux/parport.h>
	#include <linux/parport_pc.h>
	#include <linux/serial.h>
	#include <linux/serialP.h>
	#include <linux/list.h>
	#include <linux/8250_pci.h>

	#include <asm/serial.h>

	enum parport_pc_pci_cards {
	titan_110l = 0,
	titan_210l,
	netmos_9xx5_combo,
	netmos_9855,
	avlab_1s1p,
	avlab_1s1p_650,
	avlab_1s1p_850,
	avlab_1s2p,
	avlab_1s2p_650,
	avlab_1s2p_850,
	avlab_2s1p,
	avlab_2s1p_650,
	avlab_2s1p_850,
	siig_1s1p_10x,
	siig_2s1p_10x,
	siig_2p1s_20x,
	siig_1s1p_20x,
	siig_2s1p_20x,
	};

	/* each element directly indexed from enum list, above */
	struct parport_pc_pci {
	int numports;
	struct { /* BAR (base address registers) numbers in the config
	space header */
	int lo;
	int hi; /* -1 if not there, >6 for offset-method (max
	BAR is 6) */
	} addr[4];

	/* If set, this is called immediately after pci_enable_device.
	* If it returns non-zero, no probing will take place and the
	* ports will not be used. */
	int (preinit_hook) (struct pci_dev pdev, struct parport_pc_pci *card,
	int autoirq, int autodma);

	/* If set, this is called after probing for ports. If 'failed'
	* is non-zero we couldn't use any of the ports. */
	void (postinit_hook) (struct pci_dev pdev,
	struct parport_pc_pci *card, int failed);
	};

	static int __devinit netmos_parallel_init(struct pci_dev dev, struct parport_pc_pci card, int autoirq, int autodma)
	{
	/*
	* Netmos uses the subdevice ID to indicate the number of parallel
	* and serial ports. The form is 0x00PS, where <P> is the number of
	* parallel ports and <S> is the number of serial ports.
	*/
	card->numports = (dev->subsystem_device & 0xf0) >> 4;
	return 0;
	}

	static struct parport_pc_pci cards[] __devinitdata = {
	/* titan_110l */ { 1, { { 3, -1 }, } },
	/* titan_210l */ { 1, { { 3, -1 }, } },
	/* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init },
	/* netmos_9855 */ { 1, { { 0, -1 }, }, netmos_parallel_init },
	/* avlab_1s1p */ { 1, { { 1, 2}, } },
	/* avlab_1s1p_650 */ { 1, { { 1, 2}, } },
	/* avlab_1s1p_850 */ { 1, { { 1, 2}, } },
	/* avlab_1s2p */ { 2, { { 1, 2}, { 3, 4 },} },
	/* avlab_1s2p_650 */ { 2, { { 1, 2}, { 3, 4 },} },
	/* avlab_1s2p_850 */ { 2, { { 1, 2}, { 3, 4 },} },
	/* avlab_2s1p */ { 1, { { 2, 3}, } },
	/* avlab_2s1p_650 */ { 1, { { 2, 3}, } },
	/* avlab_2s1p_850 */ { 1, { { 2, 3}, } },
	/* siig_1s1p_10x */ { 1, { { 3, 4 }, } },
	/* siig_2s1p_10x */ { 1, { { 4, 5 }, } },
	/* siig_2p1s_20x */ { 2, { { 1, 2 }, { 3, 4 }, } },
	/* siig_1s1p_20x */ { 1, { { 1, 2 }, } },
	/* siig_2s1p_20x */ { 1, { { 2, 3 }, } },
	};

	static struct pci_device_id parport_serial_pci_tbl[] = {
	/* PCI cards */
	{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l },
	{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l },
	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
	/* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
	{ 0x14db, 0x2110, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p},
	{ 0x14db, 0x2111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_650},
	{ 0x14db, 0x2112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_850},
	{ 0x14db, 0x2140, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p},
	{ 0x14db, 0x2141, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p_650},
	{ 0x14db, 0x2142, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p_850},
	{ 0x14db, 0x2160, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p},
	{ 0x14db, 0x2161, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p_650},
	{ 0x14db, 0x2162, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p_850},
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850,
	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },

	{ 0, } /* terminate list */
	};
	MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);

	struct pci_board_no_ids {
	int flags;
	int num_ports;
	int base_baud;
	int uart_offset;
	int reg_shift;
	int (init_fn)(struct pci_dev dev, struct pci_board_no_ids *board,
	int enable);
	int first_uart_offset;
	};

	static int __devinit siig10x_init_fn(struct pci_dev dev, struct pci_board_no_ids board, int enable)
	{
	return pci_siig10x_fn(dev, enable);
	}

	static int __devinit siig20x_init_fn(struct pci_dev dev, struct pci_board_no_ids board, int enable)
	{
	return pci_siig20x_fn(dev, enable);
	}

	static int __devinit netmos_serial_init(struct pci_dev dev, struct pci_board_no_ids board, int enable)
	{
	board->num_ports = dev->subsystem_device & 0xf;
	return 0;
	}

	static struct pci_board_no_ids pci_boards[] __devinitdata = {
	/*
	* PCI Flags, Number of Ports, Base (Maximum) Baud Rate,
	* Offset to get to next UART's registers,
	* Register shift to use for memory-mapped I/O,
	* Initialization function, first UART offset
	*/

	// Cards not tested are marked n/t
	// If you have one of these cards and it works for you, please tell me..

	/* titan_110l */ { SPCI_FL_BASE1 \| SPCI_FL_BASE_TABLE, 1, 921600 },
	/* titan_210l */ { SPCI_FL_BASE1 \| SPCI_FL_BASE_TABLE, 2, 921600 },
	/* netmos_9xx5_combo */ { SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
	/* netmos_9855 */ { SPCI_FL_BASE2 \| SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
	/* avlab_1s1p (n/t) */ { SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	/* avlab_1s1p_650 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	/* avlab_1s1p_850 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	/* avlab_1s2p (n/t) */ { SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	/* avlab_1s2p_650 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	/* avlab_1s2p_850 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	/* avlab_2s1p (n/t) */ { SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 2, 115200 },
	/* avlab_2s1p_650 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 2, 115200 },
	/* avlab_2s1p_850 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 2, 115200 },
	/* siig_1s1p_10x */ { SPCI_FL_BASE2, 1, 460800, 0, 0, siig10x_init_fn },
	/* siig_2s1p_10x */ { SPCI_FL_BASE2, 1, 921600, 0, 0, siig10x_init_fn },
	/* siig_2p1s_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
	/* siig_1s1p_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
	/* siig_2s1p_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
	};

	struct parport_serial_private {
	int num_ser;
	int line[20];
	struct pci_board_no_ids ser;
	int num_par;
	struct parport *port[PARPORT_MAX];
	struct parport_pc_pci par;
	};

	static int __devinit get_pci_port (struct pci_dev *dev,
	struct pci_board_no_ids *board,
	struct serial_struct *req,
	int idx)
	{
	unsigned long port;
	int base_idx;
	int max_port;
	int offset;

	base_idx = SPCI_FL_GET_BASE(board->flags);
	if (board->flags & SPCI_FL_BASE_TABLE)
	base_idx += idx;

	if (board->flags & SPCI_FL_REGION_SZ_CAP) {
	max_port = pci_resource_len(dev, base_idx) / 8;
	if (idx >= max_port)
	return 1;
	}

	offset = board->first_uart_offset;

	/* Timedia/SUNIX uses a mixture of BARs and offsets */
	/* Ugh, this is ugly as all hell --- TYT */
	if(dev->vendor == PCI_VENDOR_ID_TIMEDIA ) /* 0x1409 */
	switch(idx) {
	case 0: base_idx=0;
	break;
	case 1: base_idx=0; offset=8;
	break;
	case 2: base_idx=1;
	break;
	case 3: base_idx=1; offset=8;
	break;
	case 4: /* BAR 2*/
	case 5: /* BAR 3 */
	case 6: /* BAR 4*/
	case 7: base_idx=idx-2; /* BAR 5*/
	}

	port = pci_resource_start(dev, base_idx) + offset;

	if ((board->flags & SPCI_FL_BASE_TABLE) == 0)
	port += idx * (board->uart_offset ? board->uart_offset : 8);

	if (pci_resource_flags (dev, base_idx) & IORESOURCE_IO) {
	int high_bits_offset = ((sizeof(long)-sizeof(int))*8);
	req->port = port;
	if (high_bits_offset)
	req->port_high = port >> high_bits_offset;
	else
	req->port_high = 0;
	return 0;
	}
	req->io_type = SERIAL_IO_MEM;
	req->iomem_base = ioremap(port, board->uart_offset);
	req->iomem_reg_shift = board->reg_shift;
	req->port = 0;
	return req->iomem_base ? 0 : 1;
	}

	/* Register the serial port(s) of a PCI card. */
	static int __devinit serial_register (struct pci_dev *dev,
	const struct pci_device_id *id)
	{
	struct pci_board_no_ids *board;
	struct parport_serial_private *priv = pci_get_drvdata (dev);
	struct serial_struct serial_req;
	int base_baud;
	int k;
	int success = 0;

	priv->ser = pci_boards[id->driver_data];
	board = &priv->ser;
	if (board->init_fn && ((board->init_fn) (dev, board, 1) != 0))
	return 1;

	base_baud = board->base_baud;
	if (!base_baud)
	base_baud = BASE_BAUD;
	memset (&serial_req, 0, sizeof (serial_req));

	for (k = 0; k < board->num_ports; k++) {
	int line;

	if (priv->num_ser == ARRAY_SIZE (priv->line)) {
	printk (KERN_WARNING
	"parport_serial: %s: only %u serial lines "
	"supported (%d reported)\n", pci_name (dev),
	ARRAY_SIZE (priv->line), board->num_ports);
	break;
	}

	serial_req.irq = dev->irq;
	if (get_pci_port (dev, board, &serial_req, k))
	break;
	serial_req.flags = ASYNC_SKIP_TEST \| ASYNC_AUTOPROBE;
	serial_req.baud_base = base_baud;
	line = register_serial (&serial_req);
	if (line < 0) {
	printk (KERN_DEBUG
	"parport_serial: register_serial failed\n");
	continue;
	}
	priv->line[priv->num_ser++] = line;
	success = 1;
	}

	return success ? 0 : 1;
	}

	/* Register the parallel port(s) of a PCI card. */
	static int __devinit parport_register (struct pci_dev *dev,
	const struct pci_device_id *id)
	{
	struct parport_pc_pci *card;
	struct parport_serial_private *priv = pci_get_drvdata (dev);
	int i = id->driver_data, n;
	int success = 0;

	priv->par = cards[id->driver_data];
	card = &priv->par;
	if (card->preinit_hook &&
	card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE))
	return -ENODEV;

	for (n = 0; n < card->numports; n++) {
	struct parport *port;
	int lo = card->addr[n].lo;
	int hi = card->addr[n].hi;
	unsigned long io_lo, io_hi;

	if (priv->num_par == ARRAY_SIZE (priv->port)) {
	printk (KERN_WARNING
	"parport_serial: %s: only %u parallel ports "
	"supported (%d reported)\n", pci_name (dev),
	ARRAY_SIZE (priv->port), card->numports);
	break;
	}

	io_lo = pci_resource_start (dev, lo);
	io_hi = 0;
	if ((hi >= 0) && (hi <= 6))
	io_hi = pci_resource_start (dev, hi);
	else if (hi > 6)
	io_lo += hi; /* Reinterpret the meaning of
	"hi" as an offset (see SYBA
	def.) */
	/* TODO: test if sharing interrupts works */
	printk (KERN_DEBUG "PCI parallel port detected: %04x:%04x, "
	"I/O at %#lx(%#lx)\n",
	parport_serial_pci_tbl[i].vendor,
	parport_serial_pci_tbl[i].device, io_lo, io_hi);
	port = parport_pc_probe_port (io_lo, io_hi, PARPORT_IRQ_NONE,
	PARPORT_DMA_NONE, dev);
	if (port) {
	priv->port[priv->num_par++] = port;
	success = 1;
	}
	}

	if (card->postinit_hook)
	card->postinit_hook (dev, card, !success);

	return success ? 0 : 1;
	}

	static int __devinit parport_serial_pci_probe (struct pci_dev *dev,
	const struct pci_device_id *id)
	{
	struct parport_serial_private *priv;
	int err;

	priv = kmalloc (sizeof *priv, GFP_KERNEL);
	if (!priv)
	return -ENOMEM;
	priv->num_ser = priv->num_par = 0;
	pci_set_drvdata (dev, priv);

	err = pci_enable_device (dev);
	if (err) {
	pci_set_drvdata (dev, NULL);
	kfree (priv);
	return err;
	}

	if (parport_register (dev, id)) {
	pci_set_drvdata (dev, NULL);
	kfree (priv);
	return -ENODEV;
	}

	if (serial_register (dev, id)) {
	int i;
	for (i = 0; i < priv->num_par; i++)
	parport_pc_unregister_port (priv->port[i]);
	pci_set_drvdata (dev, NULL);
	kfree (priv);
	return -ENODEV;
	}

	return 0;
	}

	static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
	{
	struct parport_serial_private *priv = pci_get_drvdata (dev);
	int i;

	// Serial ports
	for (i = 0; i < priv->num_ser; i++) {
	unregister_serial (priv->line[i]);

	if (priv->ser.init_fn)
	(priv->ser.init_fn) (dev, &priv->ser, 0);
	}
	pci_set_drvdata (dev, NULL);

	// Parallel ports
	for (i = 0; i < priv->num_par; i++)
	parport_pc_unregister_port (priv->port[i]);

	kfree (priv);
	return;
	}

	static struct pci_driver parport_serial_pci_driver = {
	.name = "parport_serial",
	.id_table = parport_serial_pci_tbl,
	.probe = parport_serial_pci_probe,
	.remove = __devexit_p(parport_serial_pci_remove),
	};


	static int __init parport_serial_init (void)
	{
	return pci_module_init (&parport_serial_pci_driver);
	}

	static void __exit parport_serial_exit (void)
	{
	pci_unregister_driver (&parport_serial_pci_driver);
	return;
	}

	MODULE_AUTHOR("Tim Waugh <twaugh@redhat.com>");
	MODULE_DESCRIPTION("Driver for common parallel+serial multi-I/O PCI cards");
	MODULE_LICENSE("GPL");

	module_init(parport_serial_init);
	module_exit(parport_serial_exit);