From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/parport/parport_serial.c | 485 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 485 insertions(+) create mode 100644 drivers/parport/parport_serial.c (limited to 'drivers/parport/parport_serial.c') diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c new file mode 100644 index 0000000..6715a17 --- /dev/null +++ b/drivers/parport/parport_serial.c @@ -0,0 +1,485 @@ +/* + * Support for common PCI multi-I/O cards (which is most of them) + * + * Copyright (C) 2001 Tim Waugh + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +enum parport_pc_pci_cards { + titan_110l = 0, + titan_210l, + netmos_9xx5_combo, + 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

is the number of + * parallel ports and 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 }, + /* 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_9xx5_combo }, + /* 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 }, +/* 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 "); +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); -- cgit v1.1