| /* |
| * 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 <asm/serial.h> |
| |
| enum parport_pc_pci_cards { |
| titan_110l = 0, |
| titan_210l, |
| avlab_1s1p, |
| avlab_1s1p_650, |
| avlab_1s1p_850, |
| avlab_1s2p, |
| avlab_1s2p_650, |
| avlab_1s2p_850, |
| avlab_2s1p, |
| avlab_2s1p_650, |
| avlab_2s1p_850, |
| }; |
| |
| |
| /* each element directly indexed from enum list, above */ |
| static 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, 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, int failed); |
| } cards[] __devinitdata = { |
| /* titan_110l */ { 1, { { 3, -1 }, } }, |
| /* titan_210l */ { 1, { { 3, -1 }, } }, |
| /* 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}, } }, |
| }; |
| |
| static struct pci_device_id parport_serial_pci_tbl[] __devinitdata = { |
| /* 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_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}, |
| { 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 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 }, |
| /* 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 }, |
| }; |
| |
| struct parport_serial_private { |
| int num_ser; |
| int line[20]; |
| struct pci_board_no_ids ser; |
| int num_par; |
| struct parport *port[PARPORT_MAX]; |
| }; |
| |
| 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 = &pci_boards[id->driver_data]; |
| struct parport_serial_private *priv = pci_get_drvdata (dev); |
| struct serial_struct serial_req; |
| int base_baud; |
| int k; |
| int success = 0; |
| |
| priv->ser = *board; |
| 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; |
| 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_serial_private *priv = pci_get_drvdata (dev); |
| int i = id->driver_data, n; |
| int success = 0; |
| |
| if (cards[i].preinit_hook && |
| cards[i].preinit_hook (dev, PARPORT_IRQ_NONE, PARPORT_DMA_NONE)) |
| return -ENODEV; |
| |
| for (n = 0; n < cards[i].numports; n++) { |
| struct parport *port; |
| int lo = cards[i].addr[n].lo; |
| int hi = cards[i].addr[n].hi; |
| unsigned long io_lo, io_hi; |
| 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 (cards[i].postinit_hook) |
| cards[i].postinit_hook (dev, !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); |