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488 lines
15 KiB
488 lines
15 KiB
/*
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* Support for common PCI multi-I/O cards (which is most of them)
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*
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* Copyright (C) 2001 Tim Waugh <twaugh@redhat.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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*
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* Multi-function PCI cards are supposed to present separate logical
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* devices on the bus. A common thing to do seems to be to just use
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* one logical device with lots of base address registers for both
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* parallel ports and serial ports. This driver is for dealing with
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* that.
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*
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*/
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/parport.h>
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#include <linux/parport_pc.h>
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#include <linux/serial.h>
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#include <linux/serialP.h>
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#include <linux/list.h>
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#include <linux/8250_pci.h>
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#include <asm/serial.h>
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enum parport_pc_pci_cards {
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titan_110l = 0,
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titan_210l,
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netmos_9xx5_combo,
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netmos_9855,
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avlab_1s1p,
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avlab_1s1p_650,
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avlab_1s1p_850,
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avlab_1s2p,
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avlab_1s2p_650,
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avlab_1s2p_850,
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avlab_2s1p,
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avlab_2s1p_650,
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avlab_2s1p_850,
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siig_1s1p_10x,
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siig_2s1p_10x,
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siig_2p1s_20x,
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siig_1s1p_20x,
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siig_2s1p_20x,
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};
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/* each element directly indexed from enum list, above */
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struct parport_pc_pci {
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int numports;
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struct { /* BAR (base address registers) numbers in the config
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space header */
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int lo;
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int hi; /* -1 if not there, >6 for offset-method (max
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BAR is 6) */
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} addr[4];
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/* If set, this is called immediately after pci_enable_device.
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* If it returns non-zero, no probing will take place and the
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* ports will not be used. */
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int (*preinit_hook) (struct pci_dev *pdev, struct parport_pc_pci *card,
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int autoirq, int autodma);
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/* If set, this is called after probing for ports. If 'failed'
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* is non-zero we couldn't use any of the ports. */
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void (*postinit_hook) (struct pci_dev *pdev,
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struct parport_pc_pci *card, int failed);
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};
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static int __devinit netmos_parallel_init(struct pci_dev *dev, struct parport_pc_pci *card, int autoirq, int autodma)
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{
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/*
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* Netmos uses the subdevice ID to indicate the number of parallel
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* and serial ports. The form is 0x00PS, where <P> is the number of
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* parallel ports and <S> is the number of serial ports.
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*/
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card->numports = (dev->subsystem_device & 0xf0) >> 4;
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return 0;
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}
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static struct parport_pc_pci cards[] __devinitdata = {
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/* titan_110l */ { 1, { { 3, -1 }, } },
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/* titan_210l */ { 1, { { 3, -1 }, } },
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/* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init },
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/* netmos_9855 */ { 1, { { 0, -1 }, }, netmos_parallel_init },
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/* avlab_1s1p */ { 1, { { 1, 2}, } },
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/* avlab_1s1p_650 */ { 1, { { 1, 2}, } },
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/* avlab_1s1p_850 */ { 1, { { 1, 2}, } },
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/* avlab_1s2p */ { 2, { { 1, 2}, { 3, 4 },} },
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/* avlab_1s2p_650 */ { 2, { { 1, 2}, { 3, 4 },} },
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/* avlab_1s2p_850 */ { 2, { { 1, 2}, { 3, 4 },} },
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/* avlab_2s1p */ { 1, { { 2, 3}, } },
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/* avlab_2s1p_650 */ { 1, { { 2, 3}, } },
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/* avlab_2s1p_850 */ { 1, { { 2, 3}, } },
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/* siig_1s1p_10x */ { 1, { { 3, 4 }, } },
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/* siig_2s1p_10x */ { 1, { { 4, 5 }, } },
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/* siig_2p1s_20x */ { 2, { { 1, 2 }, { 3, 4 }, } },
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/* siig_1s1p_20x */ { 1, { { 1, 2 }, } },
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/* siig_2s1p_20x */ { 1, { { 2, 3 }, } },
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};
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static struct pci_device_id parport_serial_pci_tbl[] = {
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/* PCI cards */
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{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l },
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{ PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo },
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{ PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 },
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/* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/
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{ 0x14db, 0x2110, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p},
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{ 0x14db, 0x2111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_650},
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{ 0x14db, 0x2112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p_850},
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{ 0x14db, 0x2140, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p},
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{ 0x14db, 0x2141, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p_650},
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{ 0x14db, 0x2142, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p_850},
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{ 0x14db, 0x2160, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p},
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{ 0x14db, 0x2161, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p_650},
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{ 0x14db, 0x2162, PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p_850},
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
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{ PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x },
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{ 0, } /* terminate list */
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};
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MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl);
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struct pci_board_no_ids {
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int flags;
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int num_ports;
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int base_baud;
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int uart_offset;
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int reg_shift;
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int (*init_fn)(struct pci_dev *dev, struct pci_board_no_ids *board,
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int enable);
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int first_uart_offset;
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};
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static int __devinit siig10x_init_fn(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
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{
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return pci_siig10x_fn(dev, enable);
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}
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static int __devinit siig20x_init_fn(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
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{
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return pci_siig20x_fn(dev, enable);
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}
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static int __devinit netmos_serial_init(struct pci_dev *dev, struct pci_board_no_ids *board, int enable)
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{
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board->num_ports = dev->subsystem_device & 0xf;
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return 0;
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}
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static struct pci_board_no_ids pci_boards[] __devinitdata = {
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/*
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* PCI Flags, Number of Ports, Base (Maximum) Baud Rate,
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* Offset to get to next UART's registers,
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* Register shift to use for memory-mapped I/O,
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* Initialization function, first UART offset
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*/
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// Cards not tested are marked n/t
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// If you have one of these cards and it works for you, please tell me..
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/* titan_110l */ { SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 1, 921600 },
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/* titan_210l */ { SPCI_FL_BASE1 | SPCI_FL_BASE_TABLE, 2, 921600 },
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/* netmos_9xx5_combo */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
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/* netmos_9855 */ { SPCI_FL_BASE2 | SPCI_FL_BASE_TABLE, 1, 115200, 0, 0, netmos_serial_init },
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/* avlab_1s1p (n/t) */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
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/* avlab_1s1p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
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/* avlab_1s1p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
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/* avlab_1s2p (n/t) */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
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/* avlab_1s2p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
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/* avlab_1s2p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 1, 115200 },
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/* avlab_2s1p (n/t) */ { SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
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/* avlab_2s1p_650 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
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/* avlab_2s1p_850 (nt)*/{ SPCI_FL_BASE0 | SPCI_FL_BASE_TABLE, 2, 115200 },
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/* siig_1s1p_10x */ { SPCI_FL_BASE2, 1, 460800, 0, 0, siig10x_init_fn },
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/* siig_2s1p_10x */ { SPCI_FL_BASE2, 1, 921600, 0, 0, siig10x_init_fn },
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/* siig_2p1s_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
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/* siig_1s1p_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
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/* siig_2s1p_20x */ { SPCI_FL_BASE0, 1, 921600, 0, 0, siig20x_init_fn },
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};
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struct parport_serial_private {
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int num_ser;
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int line[20];
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struct pci_board_no_ids ser;
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int num_par;
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struct parport *port[PARPORT_MAX];
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struct parport_pc_pci par;
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};
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static int __devinit get_pci_port (struct pci_dev *dev,
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struct pci_board_no_ids *board,
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struct serial_struct *req,
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int idx)
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{
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unsigned long port;
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int base_idx;
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int max_port;
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int offset;
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base_idx = SPCI_FL_GET_BASE(board->flags);
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if (board->flags & SPCI_FL_BASE_TABLE)
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base_idx += idx;
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if (board->flags & SPCI_FL_REGION_SZ_CAP) {
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max_port = pci_resource_len(dev, base_idx) / 8;
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if (idx >= max_port)
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return 1;
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}
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offset = board->first_uart_offset;
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/* Timedia/SUNIX uses a mixture of BARs and offsets */
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/* Ugh, this is ugly as all hell --- TYT */
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if(dev->vendor == PCI_VENDOR_ID_TIMEDIA ) /* 0x1409 */
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switch(idx) {
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case 0: base_idx=0;
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break;
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case 1: base_idx=0; offset=8;
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break;
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case 2: base_idx=1;
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break;
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case 3: base_idx=1; offset=8;
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break;
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case 4: /* BAR 2*/
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case 5: /* BAR 3 */
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case 6: /* BAR 4*/
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case 7: base_idx=idx-2; /* BAR 5*/
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}
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port = pci_resource_start(dev, base_idx) + offset;
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if ((board->flags & SPCI_FL_BASE_TABLE) == 0)
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port += idx * (board->uart_offset ? board->uart_offset : 8);
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if (pci_resource_flags (dev, base_idx) & IORESOURCE_IO) {
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int high_bits_offset = ((sizeof(long)-sizeof(int))*8);
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req->port = port;
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if (high_bits_offset)
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req->port_high = port >> high_bits_offset;
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else
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req->port_high = 0;
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return 0;
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}
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req->io_type = SERIAL_IO_MEM;
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req->iomem_base = ioremap(port, board->uart_offset);
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req->iomem_reg_shift = board->reg_shift;
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req->port = 0;
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return req->iomem_base ? 0 : 1;
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}
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/* Register the serial port(s) of a PCI card. */
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static int __devinit serial_register (struct pci_dev *dev,
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const struct pci_device_id *id)
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{
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struct pci_board_no_ids *board;
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struct parport_serial_private *priv = pci_get_drvdata (dev);
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struct serial_struct serial_req;
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int base_baud;
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int k;
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int success = 0;
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priv->ser = pci_boards[id->driver_data];
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board = &priv->ser;
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if (board->init_fn && ((board->init_fn) (dev, board, 1) != 0))
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return 1;
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base_baud = board->base_baud;
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if (!base_baud)
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base_baud = BASE_BAUD;
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memset (&serial_req, 0, sizeof (serial_req));
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for (k = 0; k < board->num_ports; k++) {
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int line;
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if (priv->num_ser == ARRAY_SIZE (priv->line)) {
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printk (KERN_WARNING
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"parport_serial: %s: only %u serial lines "
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"supported (%d reported)\n", pci_name (dev),
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ARRAY_SIZE (priv->line), board->num_ports);
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break;
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}
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serial_req.irq = dev->irq;
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if (get_pci_port (dev, board, &serial_req, k))
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break;
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serial_req.flags = ASYNC_SKIP_TEST | ASYNC_AUTOPROBE;
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serial_req.baud_base = base_baud;
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line = register_serial (&serial_req);
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if (line < 0) {
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printk (KERN_DEBUG
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"parport_serial: register_serial failed\n");
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continue;
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}
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priv->line[priv->num_ser++] = line;
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success = 1;
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}
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return success ? 0 : 1;
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}
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/* Register the parallel port(s) of a PCI card. */
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static int __devinit parport_register (struct pci_dev *dev,
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const struct pci_device_id *id)
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{
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struct parport_pc_pci *card;
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struct parport_serial_private *priv = pci_get_drvdata (dev);
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int i = id->driver_data, n;
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int success = 0;
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priv->par = cards[id->driver_data];
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card = &priv->par;
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if (card->preinit_hook &&
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card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE))
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return -ENODEV;
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for (n = 0; n < card->numports; n++) {
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struct parport *port;
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int lo = card->addr[n].lo;
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int hi = card->addr[n].hi;
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unsigned long io_lo, io_hi;
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if (priv->num_par == ARRAY_SIZE (priv->port)) {
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printk (KERN_WARNING
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"parport_serial: %s: only %u parallel ports "
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"supported (%d reported)\n", pci_name (dev),
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ARRAY_SIZE (priv->port), card->numports);
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break;
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}
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io_lo = pci_resource_start (dev, lo);
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io_hi = 0;
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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);
|
|
|