/* * 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/init.h> #include <linux/blkdev.h> #include <linux/delay.h> #include <scsi/scsi_host.h> #include <linux/ata.h> #include <linux/libata.h> #include <pcmcia/cs_types.h> #include <pcmcia/cs.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" /* * Private data structure to glue stuff together */ struct ata_pcmcia_info { struct pcmcia_device *pdev; int ndev; dev_node_t node; }; /** * 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_printk(slave, KERN_WARNING, "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 neccessary before a * reset will recover the device. * */ 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_printk(ap, KERN_WARNING, "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, .drain_fifo = pcmcia_8bit_drain_fifo, }; #define CS_CHECK(fn, ret) \ do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) struct pcmcia_config_check { unsigned long ctl_base; int skip_vcc; int is_kme; }; static int pcmcia_check_one_config(struct pcmcia_device *pdev, cistpl_cftable_entry_t *cfg, cistpl_cftable_entry_t *dflt, unsigned int vcc, void *priv_data) { struct pcmcia_config_check *stk = priv_data; /* Check for matching Vcc, unless we're desperate */ if (!stk->skip_vcc) { if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) return -ENODEV; } else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) { if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000) return -ENODEV; } } if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM)) pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000; if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; pdev->io.BasePort1 = io->win[0].base; pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; if (!(io->flags & CISTPL_IO_16BIT)) pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; if (io->nwin == 2) { pdev->io.NumPorts1 = 8; pdev->io.BasePort2 = io->win[1].base; pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1; if (pcmcia_request_io(pdev, &pdev->io) != 0) return -ENODEV; stk->ctl_base = pdev->io.BasePort2; } else if ((io->nwin == 1) && (io->win[0].len >= 16)) { pdev->io.NumPorts1 = io->win[0].len; pdev->io.NumPorts2 = 0; if (pcmcia_request_io(pdev, &pdev->io) != 0) return -ENODEV; stk->ctl_base = pdev->io.BasePort1 + 0x0e; } else return -ENODEV; /* If we've got this far, we're done */ return 0; } return -ENODEV; } /** * 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; struct ata_pcmcia_info *info; struct pcmcia_config_check *stk = NULL; int last_ret = 0, last_fn = 0, 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; info = kzalloc(sizeof(*info), GFP_KERNEL); if (info == NULL) return -ENOMEM; /* Glue stuff together. FIXME: We may be able to get rid of info with care */ info->pdev = pdev; pdev->priv = info; /* Set up attributes in order to probe card and get resources */ pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; pdev->io.IOAddrLines = 3; pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; pdev->irq.IRQInfo1 = IRQ_LEVEL_ID; pdev->conf.Attributes = CONF_ENABLE_IRQ; pdev->conf.IntType = INT_MEMORY_AND_IO; /* 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))); /* Allocate resoure probing structures */ stk = kzalloc(sizeof(*stk), GFP_KERNEL); if (!stk) goto out1; stk->is_kme = is_kme; stk->skip_vcc = io_base = ctl_base = 0; if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) { stk->skip_vcc = 1; if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) goto failed; /* No suitable config found */ } io_base = pdev->io.BasePort1; ctl_base = stk->ctl_base; CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq)); CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf)); /* 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 (pdev->io.NumPorts1 >= 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.AssignedIRQ, ata_sff_interrupt, IRQF_SHARED, &pcmcia_sht); if (ret) goto failed; info->ndev = 1; kfree(stk); return 0; cs_failed: cs_error(pdev, last_fn, last_ret); failed: kfree(stk); info->ndev = 0; pcmcia_disable_device(pdev); out1: kfree(info); 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_pcmcia_info *info = pdev->priv; struct device *dev = &pdev->dev; if (info != NULL) { /* If we have attached the device to the ATA layer, detach it */ if (info->ndev) { struct ata_host *host = dev_get_drvdata(dev); ata_host_detach(host); } info->ndev = 0; pdev->priv = NULL; } pcmcia_disable_device(pdev); kfree(info); } static 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-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", "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("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, .drv = { .name = DRV_NAME, }, .id_table = pcmcia_devices, .probe = pcmcia_init_one, .remove = pcmcia_remove_one, }; static int __init pcmcia_init(void) { return pcmcia_register_driver(&pcmcia_driver); } static void __exit pcmcia_exit(void) { pcmcia_unregister_driver(&pcmcia_driver); } MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("low-level driver for PCMCIA ATA"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); module_init(pcmcia_init); module_exit(pcmcia_exit);