[mirror_ubuntu-artful-kernel.git] / drivers / parport / parport_serial.c

/*
 * 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);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Support for common PCI multi-I/O cards (which is most of them)
	3	*
	4	* Copyright (C) 2001 Tim Waugh <twaugh@redhat.com>
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* as published by the Free Software Foundation; either version
	9	* 2 of the License, or (at your option) any later version.
	10	*
	11	*
	12	* Multi-function PCI cards are supposed to present separate logical
	13	* devices on the bus. A common thing to do seems to be to just use
	14	* one logical device with lots of base address registers for both
	15	* parallel ports and serial ports. This driver is for dealing with
	16	* that.
	17	*
	18	*/
	19
	20	#include <linux/types.h>
	21	#include <linux/module.h>
	22	#include <linux/init.h>
	23	#include <linux/pci.h>
	24	#include <linux/parport.h>
	25	#include <linux/parport_pc.h>
	26	#include <linux/serial.h>
	27	#include <linux/serialP.h>
	28	#include <linux/list.h>
	29	#include <linux/8250_pci.h>
	30
	31	#include <asm/serial.h>
	32
	33	enum parport_pc_pci_cards {
	34	titan_110l = 0,
	35	titan_210l,
	36	netmos_9xx5_combo,
44e58a6a	37	netmos_9855,
1da177e4 LT	38	avlab_1s1p,
	39	avlab_1s1p_650,
	40	avlab_1s1p_850,
	41	avlab_1s2p,
	42	avlab_1s2p_650,
	43	avlab_1s2p_850,
	44	avlab_2s1p,
	45	avlab_2s1p_650,
	46	avlab_2s1p_850,
	47	siig_1s1p_10x,
	48	siig_2s1p_10x,
	49	siig_2p1s_20x,
	50	siig_1s1p_20x,
	51	siig_2s1p_20x,
	52	};
	53
	54	/* each element directly indexed from enum list, above */
	55	struct parport_pc_pci {
	56	int numports;
	57	struct { /* BAR (base address registers) numbers in the config
	58	space header */
	59	int lo;
	60	int hi; /* -1 if not there, >6 for offset-method (max
	61	BAR is 6) */
	62	} addr[4];
	63
	64	/* If set, this is called immediately after pci_enable_device.
	65	* If it returns non-zero, no probing will take place and the
	66	* ports will not be used. */
	67	int (preinit_hook) (struct pci_dev pdev, struct parport_pc_pci *card,
	68	int autoirq, int autodma);
	69
	70	/* If set, this is called after probing for ports. If 'failed'
	71	* is non-zero we couldn't use any of the ports. */
	72	void (postinit_hook) (struct pci_dev pdev,
	73	struct parport_pc_pci *card, int failed);
	74	};
	75
	76	static int __devinit netmos_parallel_init(struct pci_dev dev, struct parport_pc_pci card, int autoirq, int autodma)
	77	{
	78	/*
	79	* Netmos uses the subdevice ID to indicate the number of parallel
	80	* and serial ports. The form is 0x00PS, where <P> is the number of
	81	* parallel ports and <S> is the number of serial ports.
	82	*/
	83	card->numports = (dev->subsystem_device & 0xf0) >> 4;
	84	return 0;
	85	}
	86
	87	static struct parport_pc_pci cards[] __devinitdata = {
	88	/* titan_110l */ { 1, { { 3, -1 }, } },
	89	/* titan_210l */ { 1, { { 3, -1 }, } },
	90	/* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init },
44e58a6a	91	/* netmos_9855 */ { 1, { { 0, -1 }, }, netmos_parallel_init },
1da177e4 LT	92	/* avlab_1s1p */ { 1, { { 1, 2}, } },
	93	/* avlab_1s1p_650 */ { 1, { { 1, 2}, } },
	94	/* avlab_1s1p_850 */ { 1, { { 1, 2}, } },
	95	/* avlab_1s2p */ { 2, { { 1, 2}, { 3, 4 },} },
	96	/* avlab_1s2p_650 */ { 2, { { 1, 2}, { 3, 4 },} },
	97	/* avlab_1s2p_850 */ { 2, { { 1, 2}, { 3, 4 },} },
	98	/* avlab_2s1p */ { 1, { { 2, 3}, } },
	99	/* avlab_2s1p_650 */ { 1, { { 2, 3}, } },
	100	/* avlab_2s1p_850 */ { 1, { { 2, 3}, } },
	101	/* siig_1s1p_10x */ { 1, { { 3, 4 }, } },
	102	/* siig_2s1p_10x */ { 1, { { 4, 5 }, } },
	103	/* siig_2p1s_20x */ { 2, { { 1, 2 }, { 3, 4 }, } },
	104	/* siig_1s1p_20x */ { 1, { { 1, 2 }, } },
	105	/* siig_2s1p_20x */ { 1, { { 2, 3 }, } },
	106	};
	107
	108	static struct pci_device_id parport_serial_pci_tbl[] = {
	109	/* PCI cards */
	110	{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L,
	111	PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l },
	112	{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L,
	113	PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l },
	114	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735,
	115	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	116	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745,
	117	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	118	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
	119	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	120	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
	121	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	122	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
	123	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
	124	{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
44e58a6a	125	PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
1da177e4 LT	126	/* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
	127	{ 0x14db, 0x2110, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p},
	128	{ 0x14db, 0x2111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_650},
	129	{ 0x14db, 0x2112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_850},
	130	{ 0x14db, 0x2140, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p},
	131	{ 0x14db, 0x2141, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p_650},
	132	{ 0x14db, 0x2142, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p_850},
	133	{ 0x14db, 0x2160, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p},
	134	{ 0x14db, 0x2161, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p_650},
	135	{ 0x14db, 0x2162, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p_850},
	136	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550,
	137	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
	138	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650,
	139	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
	140	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850,
	141	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
	142	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550,
	143	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
	144	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650,
	145	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
	146	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850,
	147	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
	148	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550,
	149	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
	150	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650,
	151	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
	152	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850,
	153	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
	154	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550,
	155	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
	156	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650,
	157	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
	158	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850,
	159	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
	160	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550,
	161	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
	162	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650,
	163	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
	164	{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850,
	165	PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
	166
	167	{ 0, } /* terminate list */
	168	};
	169	MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
	170
	171	struct pci_board_no_ids {
	172	int flags;
	173	int num_ports;
	174	int base_baud;
	175	int uart_offset;
	176	int reg_shift;
	177	int (init_fn)(struct pci_dev dev, struct pci_board_no_ids *board,
	178	int enable);
	179	int first_uart_offset;
	180	};
	181
	182	static int __devinit siig10x_init_fn(struct pci_dev dev, struct pci_board_no_ids board, int enable)
	183	{
	184	return pci_siig10x_fn(dev, enable);
	185	}
	186
	187	static int __devinit siig20x_init_fn(struct pci_dev dev, struct pci_board_no_ids board, int enable)
	188	{
	189	return pci_siig20x_fn(dev, enable);
190	}
191
192	static int __devinit netmos_serial_init(struct pci_dev dev, struct pci_board_no_ids board, int enable)
193	{
194	board->num_ports = dev->subsystem_device & 0xf;
195	return 0;
196	}
197
198	static struct pci_board_no_ids pci_boards[] __devinitdata = {
199	/*
200	* PCI Flags, Number of Ports, Base (Maximum) Baud Rate,
201	* Offset to get to next UART's registers,
202	* Register shift to use for memory-mapped I/O,
203	* Initialization function, first UART offset
204	*/
205
206	// Cards not tested are marked n/t
207	// If you have one of these cards and it works for you, please tell me..
208
209	/* titan_110l */ { SPCI_FL_BASE1 \| SPCI_FL_BASE_TABLE, 1, 921600 },
210	/* titan_210l */ { SPCI_FL_BASE1 \| SPCI_FL_BASE_TABLE, 2, 921600 },
211	/* netmos_9xx5_combo */ { SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
44e58a6a	212	/* netmos_9855 */ { SPCI_FL_BASE2 \| SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
1da177e4 LT	213	/* avlab_1s1p (n/t) */ { SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	214	/* avlab_1s1p_650 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	215	/* avlab_1s1p_850 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	216	/* avlab_1s2p (n/t) */ { SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	217	/* avlab_1s2p_650 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	218	/* avlab_1s2p_850 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 1, 115200 },
	219	/* avlab_2s1p (n/t) */ { SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 2, 115200 },
	220	/* avlab_2s1p_650 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 2, 115200 },
	221	/* avlab_2s1p_850 (nt)*/{ SPCI_FL_BASE0 \| SPCI_FL_BASE_TABLE, 2, 115200 },
	222	/* siig_1s1p_10x */ { SPCI_FL_BASE2, 1, 460800, 0, 0, siig10x_init_fn },
	223	/* siig_2s1p_10x */ { SPCI_FL_BASE2, 1, 921600, 0, 0, siig10x_init_fn },
	224	/* siig_2p1s_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
	225	/* siig_1s1p_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
	226	/* siig_2s1p_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
	227	};
	228
	229	struct parport_serial_private {
	230	int num_ser;
	231	int line[20];
	232	struct pci_board_no_ids ser;
	233	int num_par;
	234	struct parport *port[PARPORT_MAX];
	235	struct parport_pc_pci par;
	236	};
	237
	238	static int __devinit get_pci_port (struct pci_dev *dev,
	239	struct pci_board_no_ids *board,
	240	struct serial_struct *req,
	241	int idx)
	242	{
	243	unsigned long port;
	244	int base_idx;
	245	int max_port;
	246	int offset;
	247
	248	base_idx = SPCI_FL_GET_BASE(board->flags);
	249	if (board->flags & SPCI_FL_BASE_TABLE)
	250	base_idx += idx;
	251
	252	if (board->flags & SPCI_FL_REGION_SZ_CAP) {
	253	max_port = pci_resource_len(dev, base_idx) / 8;
	254	if (idx >= max_port)
	255	return 1;
	256	}
	257
	258	offset = board->first_uart_offset;
	259
	260	/* Timedia/SUNIX uses a mixture of BARs and offsets */
	261	/* Ugh, this is ugly as all hell --- TYT */
	262	if(dev->vendor == PCI_VENDOR_ID_TIMEDIA ) /* 0x1409 */
	263	switch(idx) {
	264	case 0: base_idx=0;
	265	break;
	266	case 1: base_idx=0; offset=8;
	267	break;
	268	case 2: base_idx=1;
	269	break;
	270	case 3: base_idx=1; offset=8;
	271	break;
	272	case 4: /* BAR 2*/
	273	case 5: /* BAR 3 */
	274	case 6: /* BAR 4*/
	275	case 7: base_idx=idx-2; /* BAR 5*/
	276	}
277
278	port = pci_resource_start(dev, base_idx) + offset;
279
280	if ((board->flags & SPCI_FL_BASE_TABLE) == 0)
281	port += idx * (board->uart_offset ? board->uart_offset : 8);
282
283	if (pci_resource_flags (dev, base_idx) & IORESOURCE_IO) {
284	int high_bits_offset = ((sizeof(long)-sizeof(int))*8);
285	req->port = port;
286	if (high_bits_offset)
287	req->port_high = port >> high_bits_offset;
288	else
289	req->port_high = 0;
290	return 0;
291	}
292	req->io_type = SERIAL_IO_MEM;
293	req->iomem_base = ioremap(port, board->uart_offset);
294	req->iomem_reg_shift = board->reg_shift;
295	req->port = 0;
296	return req->iomem_base ? 0 : 1;
297	}
298
299	/* Register the serial port(s) of a PCI card. */
300	static int __devinit serial_register (struct pci_dev *dev,
301	const struct pci_device_id *id)
302	{
303	struct pci_board_no_ids *board;
304	struct parport_serial_private *priv = pci_get_drvdata (dev);
305	struct serial_struct serial_req;
306	int base_baud;
307	int k;
308	int success = 0;
309
310	priv->ser = pci_boards[id->driver_data];
311	board = &priv->ser;
312	if (board->init_fn && ((board->init_fn) (dev, board, 1) != 0))
313	return 1;
314
315	base_baud = board->base_baud;
316	if (!base_baud)
317	base_baud = BASE_BAUD;
318	memset (&serial_req, 0, sizeof (serial_req));
319
320	for (k = 0; k < board->num_ports; k++) {
321	int line;
322
323	if (priv->num_ser == ARRAY_SIZE (priv->line)) {
324	printk (KERN_WARNING
325	"parport_serial: %s: only %u serial lines "
326	"supported (%d reported)\n", pci_name (dev),
327	ARRAY_SIZE (priv->line), board->num_ports);
328	break;
329	}
330
331	serial_req.irq = dev->irq;
332	if (get_pci_port (dev, board, &serial_req, k))
333	break;
334	serial_req.flags = ASYNC_SKIP_TEST \| ASYNC_AUTOPROBE;
335	serial_req.baud_base = base_baud;
336	line = register_serial (&serial_req);
337	if (line < 0) {
338	printk (KERN_DEBUG
339	"parport_serial: register_serial failed\n");
340	continue;
341	}
342	priv->line[priv->num_ser++] = line;
343	success = 1;
344	}
345
346	return success ? 0 : 1;
347	}
348
349	/* Register the parallel port(s) of a PCI card. */
350	static int __devinit parport_register (struct pci_dev *dev,
351	const struct pci_device_id *id)
352	{
353	struct parport_pc_pci *card;
354	struct parport_serial_private *priv = pci_get_drvdata (dev);
355	int i = id->driver_data, n;
356	int success = 0;
357
358	priv->par = cards[id->driver_data];
359	card = &priv->par;
360	if (card->preinit_hook &&
361	card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE))
362	return -ENODEV;
363
364	for (n = 0; n < card->numports; n++) {
365	struct parport *port;
366	int lo = card->addr[n].lo;
367	int hi = card->addr[n].hi;
368	unsigned long io_lo, io_hi;
369
370	if (priv->num_par == ARRAY_SIZE (priv->port)) {
371	printk (KERN_WARNING
372	"parport_serial: %s: only %u parallel ports "
373	"supported (%d reported)\n", pci_name (dev),
374	ARRAY_SIZE (priv->port), card->numports);
375	break;
376	}
377
378	io_lo = pci_resource_start (dev, lo);
379	io_hi = 0;
380	if ((hi >= 0) && (hi <= 6))
381	io_hi = pci_resource_start (dev, hi);
382	else if (hi > 6)
383	io_lo += hi; /* Reinterpret the meaning of
384	"hi" as an offset (see SYBA
385	def.) */
386	/* TODO: test if sharing interrupts works */
387	printk (KERN_DEBUG "PCI parallel port detected: %04x:%04x, "
388	"I/O at %#lx(%#lx)\n",
389	parport_serial_pci_tbl[i].vendor,
390	parport_serial_pci_tbl[i].device, io_lo, io_hi);
391	port = parport_pc_probe_port (io_lo, io_hi, PARPORT_IRQ_NONE,
392	PARPORT_DMA_NONE, dev);
393	if (port) {
394	priv->port[priv->num_par++] = port;
395	success = 1;
396	}
397	}
398
399	if (card->postinit_hook)
400	card->postinit_hook (dev, card, !success);
401
402	return success ? 0 : 1;
403	}
404
405	static int __devinit parport_serial_pci_probe (struct pci_dev *dev,
406	const struct pci_device_id *id)
407	{
408	struct parport_serial_private *priv;
409	int err;
410
411	priv = kmalloc (sizeof *priv, GFP_KERNEL);
412	if (!priv)
413	return -ENOMEM;
414	priv->num_ser = priv->num_par = 0;
415	pci_set_drvdata (dev, priv);
416
417	err = pci_enable_device (dev);
418	if (err) {
419	pci_set_drvdata (dev, NULL);
420	kfree (priv);
421	return err;
422	}
423
424	if (parport_register (dev, id)) {
425	pci_set_drvdata (dev, NULL);
426	kfree (priv);
427	return -ENODEV;
428	}
429
430	if (serial_register (dev, id)) {
431	int i;
432	for (i = 0; i < priv->num_par; i++)
433	parport_pc_unregister_port (priv->port[i]);
434	pci_set_drvdata (dev, NULL);
435	kfree (priv);
436	return -ENODEV;
437	}
438
439	return 0;
440	}
441
442	static void __devexit parport_serial_pci_remove (struct pci_dev *dev)
443	{
444	struct parport_serial_private *priv = pci_get_drvdata (dev);
445	int i;
446
447	// Serial ports
448	for (i = 0; i < priv->num_ser; i++) {
449	unregister_serial (priv->line[i]);
450
451	if (priv->ser.init_fn)
452	(priv->ser.init_fn) (dev, &priv->ser, 0);
453	}
454	pci_set_drvdata (dev, NULL);
455
456	// Parallel ports
457	for (i = 0; i < priv->num_par; i++)
458	parport_pc_unregister_port (priv->port[i]);
459
460	kfree (priv);
461	return;
462	}
463
464	static struct pci_driver parport_serial_pci_driver = {
465	.name = "parport_serial",
466	.id_table = parport_serial_pci_tbl,
467	.probe = parport_serial_pci_probe,
468	.remove = __devexit_p(parport_serial_pci_remove),
469	};
470
471
472	static int __init parport_serial_init (void)
473	{
474	return pci_module_init (&parport_serial_pci_driver);
475	}
476
477	static void __exit parport_serial_exit (void)
478	{
479	pci_unregister_driver (&parport_serial_pci_driver);
480	return;
481	}
482
483	MODULE_AUTHOR("Tim Waugh <twaugh@redhat.com>");
484	MODULE_DESCRIPTION("Driver for common parallel+serial multi-I/O PCI cards");
485	MODULE_LICENSE("GPL");
486
487	module_init(parport_serial_init);
488	module_exit(parport_serial_exit);