diff options
Diffstat (limited to 'kernel/drivers/ata/pata_pcmcia.c')
| -rw-r--r-- | kernel/drivers/ata/pata_pcmcia.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/kernel/drivers/ata/pata_pcmcia.c b/kernel/drivers/ata/pata_pcmcia.c new file mode 100644 index 000000000..bcc4b968c --- /dev/null +++ b/kernel/drivers/ata/pata_pcmcia.c @@ -0,0 +1,394 @@ +/* + * pata_pcmcia.c - PCMCIA PATA controller driver. + * Copyright 2005-2006 Red Hat Inc, all rights reserved. + * PCMCIA ident update Copyright 2006 Marcin Juszkiewicz + * <openembedded@hrw.one.pl> + * + * 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, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Heavily based upon ide-cs.c + * The initial developer of the original code is David A. Hinds + * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds + * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/blkdev.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <scsi/scsi_host.h> +#include <linux/ata.h> +#include <linux/libata.h> + +#include <pcmcia/cistpl.h> +#include <pcmcia/ds.h> +#include <pcmcia/cisreg.h> +#include <pcmcia/ciscode.h> + + +#define DRV_NAME "pata_pcmcia" +#define DRV_VERSION "0.3.5" + +/** + * pcmcia_set_mode - PCMCIA specific mode setup + * @link: link + * @r_failed_dev: Return pointer for failed device + * + * Perform the tuning and setup of the devices and timings, which + * for PCMCIA is the same as any other controller. We wrap it however + * as we need to spot hardware with incorrect or missing master/slave + * decode, which alas is embarrassingly common in the PC world + */ + +static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev) +{ + struct ata_device *master = &link->device[0]; + struct ata_device *slave = &link->device[1]; + + if (!ata_dev_enabled(master) || !ata_dev_enabled(slave)) + return ata_do_set_mode(link, r_failed_dev); + + if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV, + ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) { + /* Suspicious match, but could be two cards from + the same vendor - check serial */ + if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO, + ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) { + ata_dev_warn(slave, "is a ghost device, ignoring\n"); + ata_dev_disable(slave); + } + } + return ata_do_set_mode(link, r_failed_dev); +} + +/** + * pcmcia_set_mode_8bit - PCMCIA specific mode setup + * @link: link + * @r_failed_dev: Return pointer for failed device + * + * For the simple emulated 8bit stuff the less we do the better. + */ + +static int pcmcia_set_mode_8bit(struct ata_link *link, + struct ata_device **r_failed_dev) +{ + return 0; +} + +/** + * ata_data_xfer_8bit - Transfer data by 8bit PIO + * @dev: device to target + * @buf: data buffer + * @buflen: buffer length + * @rw: read/write + * + * Transfer data from/to the device data register by 8 bit PIO. + * + * LOCKING: + * Inherited from caller. + */ + +static unsigned int ata_data_xfer_8bit(struct ata_device *dev, + unsigned char *buf, unsigned int buflen, int rw) +{ + struct ata_port *ap = dev->link->ap; + + if (rw == READ) + ioread8_rep(ap->ioaddr.data_addr, buf, buflen); + else + iowrite8_rep(ap->ioaddr.data_addr, buf, buflen); + + return buflen; +} + +/** + * pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers + * @qc: command + * + * Drain the FIFO and device of any stuck data following a command + * failing to complete. In some cases this is necessary before a + * reset will recover the device. + * + */ + +static void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc) +{ + int count; + struct ata_port *ap; + + /* We only need to flush incoming data when a command was running */ + if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE) + return; + + ap = qc->ap; + + /* Drain up to 64K of data before we give up this recovery method */ + for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ) + && count++ < 65536;) + ioread8(ap->ioaddr.data_addr); + + if (count) + ata_port_warn(ap, "drained %d bytes to clear DRQ\n", count); + +} + +static struct scsi_host_template pcmcia_sht = { + ATA_PIO_SHT(DRV_NAME), +}; + +static struct ata_port_operations pcmcia_port_ops = { + .inherits = &ata_sff_port_ops, + .sff_data_xfer = ata_sff_data_xfer_noirq, + .cable_detect = ata_cable_40wire, + .set_mode = pcmcia_set_mode, +}; + +static struct ata_port_operations pcmcia_8bit_port_ops = { + .inherits = &ata_sff_port_ops, + .sff_data_xfer = ata_data_xfer_8bit, + .cable_detect = ata_cable_40wire, + .set_mode = pcmcia_set_mode_8bit, + .sff_drain_fifo = pcmcia_8bit_drain_fifo, +}; + + +static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data) +{ + int *is_kme = priv_data; + + if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH) + != IO_DATA_PATH_WIDTH_8) { + pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; + pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; + } + pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; + pdev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; + + if (pdev->resource[1]->end) { + pdev->resource[0]->end = 8; + pdev->resource[1]->end = (*is_kme) ? 2 : 1; + } else { + if (pdev->resource[0]->end < 16) + return -ENODEV; + } + + return pcmcia_request_io(pdev); +} + +/** + * pcmcia_init_one - attach a PCMCIA interface + * @pdev: pcmcia device + * + * Register a PCMCIA IDE interface. Such interfaces are PIO 0 and + * shared IRQ. + */ + +static int pcmcia_init_one(struct pcmcia_device *pdev) +{ + struct ata_host *host; + struct ata_port *ap; + int is_kme = 0, ret = -ENOMEM, p; + unsigned long io_base, ctl_base; + void __iomem *io_addr, *ctl_addr; + int n_ports = 1; + struct ata_port_operations *ops = &pcmcia_port_ops; + + /* Set up attributes in order to probe card and get resources */ + pdev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO | + CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC; + + /* See if we have a manufacturer identifier. Use it to set is_kme for + vendor quirks */ + is_kme = ((pdev->manf_id == MANFID_KME) && + ((pdev->card_id == PRODID_KME_KXLC005_A) || + (pdev->card_id == PRODID_KME_KXLC005_B))); + + if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) { + pdev->config_flags &= ~CONF_AUTO_CHECK_VCC; + if (pcmcia_loop_config(pdev, pcmcia_check_one_config, &is_kme)) + goto failed; /* No suitable config found */ + } + io_base = pdev->resource[0]->start; + if (pdev->resource[1]->end) + ctl_base = pdev->resource[1]->start; + else + ctl_base = pdev->resource[0]->start + 0x0e; + + if (!pdev->irq) + goto failed; + + ret = pcmcia_enable_device(pdev); + if (ret) + goto failed; + + /* iomap */ + ret = -ENOMEM; + io_addr = devm_ioport_map(&pdev->dev, io_base, 8); + ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1); + if (!io_addr || !ctl_addr) + goto failed; + + /* Success. Disable the IRQ nIEN line, do quirks */ + iowrite8(0x02, ctl_addr); + if (is_kme) + iowrite8(0x81, ctl_addr + 0x01); + + /* FIXME: Could be more ports at base + 0x10 but we only deal with + one right now */ + if (resource_size(pdev->resource[0]) >= 0x20) + n_ports = 2; + + if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620) + ops = &pcmcia_8bit_port_ops; + /* + * Having done the PCMCIA plumbing the ATA side is relatively + * sane. + */ + ret = -ENOMEM; + host = ata_host_alloc(&pdev->dev, n_ports); + if (!host) + goto failed; + + for (p = 0; p < n_ports; p++) { + ap = host->ports[p]; + + ap->ops = ops; + ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */ + ap->flags |= ATA_FLAG_SLAVE_POSS; + ap->ioaddr.cmd_addr = io_addr + 0x10 * p; + ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p; + ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p; + ata_sff_std_ports(&ap->ioaddr); + + ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base); + } + + /* activate */ + ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt, + IRQF_SHARED, &pcmcia_sht); + if (ret) + goto failed; + + pdev->priv = host; + return 0; + +failed: + pcmcia_disable_device(pdev); + return ret; +} + +/** + * pcmcia_remove_one - unplug an pcmcia interface + * @pdev: pcmcia device + * + * A PCMCIA ATA device has been unplugged. Perform the needed + * cleanup. Also called on module unload for any active devices. + */ + +static void pcmcia_remove_one(struct pcmcia_device *pdev) +{ + struct ata_host *host = pdev->priv; + + if (host) + ata_host_detach(host); + + pcmcia_disable_device(pdev); +} + +static const struct pcmcia_device_id pcmcia_devices[] = { + PCMCIA_DEVICE_FUNC_ID(4), + PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */ + PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ + PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ + PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ + PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), + PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904), + PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ + PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */ + PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */ + PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ + PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), + PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ + PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ + PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), + PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ + PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ + PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), + PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), + PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), + PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), + PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), + PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591), + PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), + PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), + PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), + PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), + PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), + PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), + PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), + PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), + PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), + PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420), + PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), + PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), + PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb), + PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10), + PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e), + PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b), + PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), + PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), + PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), + PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee), + PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c), + PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), + PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), + PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883), + PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d), + PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6), + PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003), + PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443), + PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32), + PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1), + PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2), + PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8), + PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133), + PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47), + PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852), + PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), + PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), + PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), + PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), + PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506), + PCMCIA_DEVICE_NULL, +}; + +MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices); + +static struct pcmcia_driver pcmcia_driver = { + .owner = THIS_MODULE, + .name = DRV_NAME, + .id_table = pcmcia_devices, + .probe = pcmcia_init_one, + .remove = pcmcia_remove_one, +}; +module_pcmcia_driver(pcmcia_driver); + +MODULE_AUTHOR("Alan Cox"); +MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRV_VERSION); |