485 lines
16 KiB
C
485 lines
16 KiB
C
/*
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* pata_pcmcia.c - PCMCIA PATA controller driver.
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* Copyright 2005-2006 Red Hat Inc, all rights reserved.
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* PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
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* <openembedded@hrw.one.pl>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Heavily based upon ide-cs.c
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <scsi/scsi_host.h>
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#include <linux/ata.h>
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#include <linux/libata.h>
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#include <pcmcia/cs_types.h>
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#include <pcmcia/cs.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/ds.h>
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#include <pcmcia/cisreg.h>
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#include <pcmcia/ciscode.h>
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#define DRV_NAME "pata_pcmcia"
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#define DRV_VERSION "0.3.5"
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/*
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* Private data structure to glue stuff together
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*/
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struct ata_pcmcia_info {
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struct pcmcia_device *pdev;
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int ndev;
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dev_node_t node;
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};
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/**
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* pcmcia_set_mode - PCMCIA specific mode setup
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* @link: link
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* @r_failed_dev: Return pointer for failed device
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*
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* Perform the tuning and setup of the devices and timings, which
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* for PCMCIA is the same as any other controller. We wrap it however
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* as we need to spot hardware with incorrect or missing master/slave
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* decode, which alas is embarrassingly common in the PC world
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*/
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static int pcmcia_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
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{
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struct ata_device *master = &link->device[0];
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struct ata_device *slave = &link->device[1];
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if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
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return ata_do_set_mode(link, r_failed_dev);
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if (memcmp(master->id + ATA_ID_FW_REV, slave->id + ATA_ID_FW_REV,
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ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0) {
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/* Suspicious match, but could be two cards from
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the same vendor - check serial */
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if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
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ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
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ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n");
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ata_dev_disable(slave);
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}
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}
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return ata_do_set_mode(link, r_failed_dev);
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}
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/**
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* pcmcia_set_mode_8bit - PCMCIA specific mode setup
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* @link: link
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* @r_failed_dev: Return pointer for failed device
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*
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* For the simple emulated 8bit stuff the less we do the better.
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*/
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static int pcmcia_set_mode_8bit(struct ata_link *link,
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struct ata_device **r_failed_dev)
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{
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return 0;
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}
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/**
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* ata_data_xfer_8bit - Transfer data by 8bit PIO
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* @dev: device to target
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* @buf: data buffer
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* @buflen: buffer length
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* @rw: read/write
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*
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* Transfer data from/to the device data register by 8 bit PIO.
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*
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* LOCKING:
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* Inherited from caller.
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*/
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static unsigned int ata_data_xfer_8bit(struct ata_device *dev,
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unsigned char *buf, unsigned int buflen, int rw)
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{
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struct ata_port *ap = dev->link->ap;
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if (rw == READ)
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ioread8_rep(ap->ioaddr.data_addr, buf, buflen);
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else
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iowrite8_rep(ap->ioaddr.data_addr, buf, buflen);
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return buflen;
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}
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/**
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* pcmcia_8bit_drain_fifo - Stock FIFO drain logic for SFF controllers
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* @qc: command
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*
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* Drain the FIFO and device of any stuck data following a command
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* failing to complete. In some cases this is neccessary before a
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* reset will recover the device.
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*
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*/
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void pcmcia_8bit_drain_fifo(struct ata_queued_cmd *qc)
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{
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int count;
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struct ata_port *ap;
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/* We only need to flush incoming data when a command was running */
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if (qc == NULL || qc->dma_dir == DMA_TO_DEVICE)
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return;
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ap = qc->ap;
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/* Drain up to 64K of data before we give up this recovery method */
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for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
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&& count++ < 65536;)
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ioread8(ap->ioaddr.data_addr);
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if (count)
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ata_port_printk(ap, KERN_WARNING, "drained %d bytes to clear DRQ.\n",
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count);
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}
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static struct scsi_host_template pcmcia_sht = {
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ATA_PIO_SHT(DRV_NAME),
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};
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static struct ata_port_operations pcmcia_port_ops = {
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.inherits = &ata_sff_port_ops,
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.sff_data_xfer = ata_sff_data_xfer_noirq,
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.cable_detect = ata_cable_40wire,
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.set_mode = pcmcia_set_mode,
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};
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static struct ata_port_operations pcmcia_8bit_port_ops = {
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.inherits = &ata_sff_port_ops,
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.sff_data_xfer = ata_data_xfer_8bit,
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.cable_detect = ata_cable_40wire,
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.set_mode = pcmcia_set_mode_8bit,
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.drain_fifo = pcmcia_8bit_drain_fifo,
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};
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#define CS_CHECK(fn, ret) \
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do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
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struct pcmcia_config_check {
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unsigned long ctl_base;
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int skip_vcc;
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int is_kme;
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};
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static int pcmcia_check_one_config(struct pcmcia_device *pdev,
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cistpl_cftable_entry_t *cfg,
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cistpl_cftable_entry_t *dflt,
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unsigned int vcc,
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void *priv_data)
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{
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struct pcmcia_config_check *stk = priv_data;
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/* Check for matching Vcc, unless we're desperate */
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if (!stk->skip_vcc) {
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if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
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if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
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return -ENODEV;
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} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
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if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
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return -ENODEV;
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}
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}
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if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
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pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
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else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
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pdev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
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if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
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cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
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pdev->io.BasePort1 = io->win[0].base;
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pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
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if (!(io->flags & CISTPL_IO_16BIT))
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pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
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if (io->nwin == 2) {
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pdev->io.NumPorts1 = 8;
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pdev->io.BasePort2 = io->win[1].base;
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pdev->io.NumPorts2 = (stk->is_kme) ? 2 : 1;
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if (pcmcia_request_io(pdev, &pdev->io) != 0)
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return -ENODEV;
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stk->ctl_base = pdev->io.BasePort2;
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} else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
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pdev->io.NumPorts1 = io->win[0].len;
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pdev->io.NumPorts2 = 0;
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if (pcmcia_request_io(pdev, &pdev->io) != 0)
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return -ENODEV;
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stk->ctl_base = pdev->io.BasePort1 + 0x0e;
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} else
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return -ENODEV;
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/* If we've got this far, we're done */
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return 0;
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}
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return -ENODEV;
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}
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/**
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* pcmcia_init_one - attach a PCMCIA interface
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* @pdev: pcmcia device
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*
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* Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
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* shared IRQ.
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*/
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static int pcmcia_init_one(struct pcmcia_device *pdev)
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{
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struct ata_host *host;
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struct ata_port *ap;
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struct ata_pcmcia_info *info;
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struct pcmcia_config_check *stk = NULL;
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int last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM, p;
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unsigned long io_base, ctl_base;
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void __iomem *io_addr, *ctl_addr;
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int n_ports = 1;
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struct ata_port_operations *ops = &pcmcia_port_ops;
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info = kzalloc(sizeof(*info), GFP_KERNEL);
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if (info == NULL)
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return -ENOMEM;
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/* Glue stuff together. FIXME: We may be able to get rid of info with care */
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info->pdev = pdev;
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pdev->priv = info;
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/* Set up attributes in order to probe card and get resources */
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pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
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pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
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pdev->io.IOAddrLines = 3;
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pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
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pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
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pdev->conf.Attributes = CONF_ENABLE_IRQ;
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pdev->conf.IntType = INT_MEMORY_AND_IO;
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/* See if we have a manufacturer identifier. Use it to set is_kme for
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vendor quirks */
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is_kme = ((pdev->manf_id == MANFID_KME) &&
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((pdev->card_id == PRODID_KME_KXLC005_A) ||
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(pdev->card_id == PRODID_KME_KXLC005_B)));
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/* Allocate resoure probing structures */
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stk = kzalloc(sizeof(*stk), GFP_KERNEL);
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if (!stk)
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goto out1;
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stk->is_kme = is_kme;
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stk->skip_vcc = io_base = ctl_base = 0;
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if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk)) {
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stk->skip_vcc = 1;
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if (pcmcia_loop_config(pdev, pcmcia_check_one_config, stk))
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goto failed; /* No suitable config found */
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}
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io_base = pdev->io.BasePort1;
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ctl_base = stk->ctl_base;
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CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
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CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
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/* iomap */
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ret = -ENOMEM;
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io_addr = devm_ioport_map(&pdev->dev, io_base, 8);
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ctl_addr = devm_ioport_map(&pdev->dev, ctl_base, 1);
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if (!io_addr || !ctl_addr)
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goto failed;
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/* Success. Disable the IRQ nIEN line, do quirks */
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iowrite8(0x02, ctl_addr);
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if (is_kme)
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iowrite8(0x81, ctl_addr + 0x01);
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/* FIXME: Could be more ports at base + 0x10 but we only deal with
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one right now */
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if (pdev->io.NumPorts1 >= 0x20)
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n_ports = 2;
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if (pdev->manf_id == 0x0097 && pdev->card_id == 0x1620)
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ops = &pcmcia_8bit_port_ops;
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/*
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* Having done the PCMCIA plumbing the ATA side is relatively
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* sane.
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*/
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ret = -ENOMEM;
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host = ata_host_alloc(&pdev->dev, n_ports);
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if (!host)
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goto failed;
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for (p = 0; p < n_ports; p++) {
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ap = host->ports[p];
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ap->ops = ops;
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ap->pio_mask = ATA_PIO0; /* ISA so PIO 0 cycles */
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ap->flags |= ATA_FLAG_SLAVE_POSS;
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ap->ioaddr.cmd_addr = io_addr + 0x10 * p;
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ap->ioaddr.altstatus_addr = ctl_addr + 0x10 * p;
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ap->ioaddr.ctl_addr = ctl_addr + 0x10 * p;
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ata_sff_std_ports(&ap->ioaddr);
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ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io_base, ctl_base);
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}
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/* activate */
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ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt,
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IRQF_SHARED, &pcmcia_sht);
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if (ret)
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goto failed;
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info->ndev = 1;
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kfree(stk);
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return 0;
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cs_failed:
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cs_error(pdev, last_fn, last_ret);
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failed:
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kfree(stk);
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info->ndev = 0;
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pcmcia_disable_device(pdev);
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out1:
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kfree(info);
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return ret;
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}
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/**
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* pcmcia_remove_one - unplug an pcmcia interface
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* @pdev: pcmcia device
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*
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* A PCMCIA ATA device has been unplugged. Perform the needed
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* cleanup. Also called on module unload for any active devices.
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*/
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static void pcmcia_remove_one(struct pcmcia_device *pdev)
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{
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struct ata_pcmcia_info *info = pdev->priv;
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struct device *dev = &pdev->dev;
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if (info != NULL) {
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/* If we have attached the device to the ATA layer, detach it */
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if (info->ndev) {
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struct ata_host *host = dev_get_drvdata(dev);
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ata_host_detach(host);
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}
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info->ndev = 0;
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pdev->priv = NULL;
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}
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pcmcia_disable_device(pdev);
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kfree(info);
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}
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static struct pcmcia_device_id pcmcia_devices[] = {
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PCMCIA_DEVICE_FUNC_ID(4),
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PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */
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PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
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PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */
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PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */
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PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
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PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
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PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */
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PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */
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PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */
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PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
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PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
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PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
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PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
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PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
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PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */
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PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */
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PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
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PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
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PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
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PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
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PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
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PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591),
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PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
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PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
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PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
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PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
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PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
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PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
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PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
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PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
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PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
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PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420),
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PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
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PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
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PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e),
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|
PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
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|
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);
|