// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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 >
*
* 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_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_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 8 bit 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 8 bit PIO
* @ qc : queued command
* @ 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_queued_cmd *qc,
unsigned char *buf, unsigned int buflen, int rw)
{
struct ata_port *ap = qc->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 const 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_xfer32,
.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 + 0 x0e;
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(0 x02, ctl_addr);
if (is_kme)
iowrite8(0 x81, ctl_addr + 0 x01);
/* FIXME: Could be more ports at base + 0x10 but we only deal with
one right now */
if (resource_size(pdev->resource[0 ]) >= 0 x20)
n_ports = 2 ;
if (pdev->manf_id == 0 x0097 && pdev->card_id == 0 x1620)
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 + 0 x10 * p;
ap->ioaddr.altstatus_addr = ctl_addr + 0 x10 * p;
ap->ioaddr.ctl_addr = ctl_addr + 0 x10 * 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(0 x0000, 0 x0000), /* Corsair */
PCMCIA_DEVICE_MANF_CARD(0 x0007, 0 x0000), /* Hitachi */
PCMCIA_DEVICE_MANF_CARD(0 x000a, 0 x0000), /* I-O Data CFA */
PCMCIA_DEVICE_MANF_CARD(0 x001c, 0 x0001), /* Mitsubishi CFA */
PCMCIA_DEVICE_MANF_CARD(0 x0032, 0 x0704),
PCMCIA_DEVICE_MANF_CARD(0 x0032, 0 x2904),
PCMCIA_DEVICE_MANF_CARD(0 x0045, 0 x0401), /* SanDisk CFA */
PCMCIA_DEVICE_MANF_CARD(0 x004f, 0 x0000), /* Kingston */
PCMCIA_DEVICE_MANF_CARD(0 x0097, 0 x1620), /* TI emulated */
PCMCIA_DEVICE_MANF_CARD(0 x0098, 0 x0000), /* Toshiba */
PCMCIA_DEVICE_MANF_CARD(0 x00a4, 0 x002d),
PCMCIA_DEVICE_MANF_CARD(0 x00ce, 0 x0000), /* Samsung */
PCMCIA_DEVICE_MANF_CARD(0 x00f1, 0 x0101), /* SanDisk High (>8G) CFA */
PCMCIA_DEVICE_MANF_CARD(0 x0319, 0 x0000), /* Hitachi */
PCMCIA_DEVICE_MANF_CARD(0 x2080, 0 x0001),
PCMCIA_DEVICE_MANF_CARD(0 x4e01, 0 x0100), /* Viking CFA */
PCMCIA_DEVICE_MANF_CARD(0 x4e01, 0 x0200), /* Lexar, Viking CFA */
PCMCIA_DEVICE_PROD_ID123("Caravelle" , "PSC-IDE " , "PSC000" , 0 x8c36137c, 0 xd0693ab8, 0 x2768a9f0),
PCMCIA_DEVICE_PROD_ID123("CDROM" , "IDE" , "MCD-601p" , 0 x1b9179ca, 0 xede88951, 0 x0d902f74),
PCMCIA_DEVICE_PROD_ID123("PCMCIA" , "IDE CARD" , "F1" , 0 x281f1c5d, 0 x1907960c, 0 xf7fde8b9),
PCMCIA_DEVICE_PROD_ID12("ARGOSY" , "CD-ROM" , 0 x78f308dc, 0 x66536591),
PCMCIA_DEVICE_PROD_ID12("ARGOSY" , "PnPIDE" , 0 x78f308dc, 0 x0c694728),
PCMCIA_DEVICE_PROD_ID12("CNF " , "CD-ROM" , 0 x46d7db81, 0 x66536591),
PCMCIA_DEVICE_PROD_ID12("CNF CD-M" , "CD-ROM" , 0 x7d93b852, 0 x66536591),
PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd." , "PCMCIA CD-ROM Interface Card" , 0 xff8c8a45, 0 xfe8020c4),
PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation." , "Digital Mobile Media CD-ROM" , 0 x17692a66, 0 xef1dcbde),
PCMCIA_DEVICE_PROD_ID12("EXP" , "CD+GAME" , 0 x6f58c983, 0 x63c13aaf),
PCMCIA_DEVICE_PROD_ID12("EXP " , "CD-ROM" , 0 x0a5c52fd, 0 x66536591),
PCMCIA_DEVICE_PROD_ID12("EXP " , "PnPIDE" , 0 x0a5c52fd, 0 x0c694728),
PCMCIA_DEVICE_PROD_ID12("FREECOM" , "PCCARD-IDE" , 0 x5714cbf7, 0 x48e0ab8e),
PCMCIA_DEVICE_PROD_ID12("HITACHI" , "FLASH" , 0 xf4f43949, 0 x9eb86aae),
PCMCIA_DEVICE_PROD_ID12("HITACHI" , "microdrive" , 0 xf4f43949, 0 xa6d76178),
PCMCIA_DEVICE_PROD_ID12("Hyperstone" , "Model1" , 0 x3d5b9ef5, 0 xca6ab420),
PCMCIA_DEVICE_PROD_ID12("IBM" , "microdrive" , 0 xb569a6e5, 0 xa6d76178),
PCMCIA_DEVICE_PROD_ID12("IBM" , "IBM17JSSFP20" , 0 xb569a6e5, 0 xf2508753),
PCMCIA_DEVICE_PROD_ID12("KINGSTON" , "CF CARD 1GB" , 0 x2e6d1829, 0 x55d5bffb),
PCMCIA_DEVICE_PROD_ID12("KINGSTON" , "CF CARD 4GB" , 0 x2e6d1829, 0 x531e7d10),
PCMCIA_DEVICE_PROD_ID12("KINGSTON" , "CF8GB" , 0 x2e6d1829, 0 xacbe682e),
PCMCIA_DEVICE_PROD_ID12("IO DATA" , "CBIDE2 " , 0 x547e66dc, 0 x8671043b),
PCMCIA_DEVICE_PROD_ID12("IO DATA" , "PCIDE" , 0 x547e66dc, 0 x5c5ab149),
PCMCIA_DEVICE_PROD_ID12("IO DATA" , "PCIDEII" , 0 x547e66dc, 0 xb3662674),
PCMCIA_DEVICE_PROD_ID12("LOOKMEET" , "CBIDE2 " , 0 xe37be2b5, 0 x8671043b),
PCMCIA_DEVICE_PROD_ID12("M-Systems" , "CF300" , 0 x7ed2ad87, 0 x7e9e78ee),
PCMCIA_DEVICE_PROD_ID12("M-Systems" , "CF500" , 0 x7ed2ad87, 0 x7a13045c),
PCMCIA_DEVICE_PROD_ID2("NinjaATA-" , 0 xebe0bd79),
PCMCIA_DEVICE_PROD_ID12("PCMCIA" , "CD-ROM" , 0 x281f1c5d, 0 x66536591),
PCMCIA_DEVICE_PROD_ID12("PCMCIA" , "PnPIDE" , 0 x281f1c5d, 0 x0c694728),
PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD." , "PCCARD-IDE/ATAPI Adapter" , 0 x4a3f0ba0, 0 x322560e1),
PCMCIA_DEVICE_PROD_ID12("SEAGATE" , "ST1" , 0 x87c1b330, 0 xe1f30883),
PCMCIA_DEVICE_PROD_ID12("SAMSUNG" , "04/05/06" , 0 x43d74cb4, 0 x6a22777d),
PCMCIA_DEVICE_PROD_ID12("SMI VENDOR" , "SMI PRODUCT" , 0 x30896c92, 0 x703cc5f6),
PCMCIA_DEVICE_PROD_ID12("TOSHIBA" , "MK2001MPL" , 0 xb4585a1a, 0 x3489e003),
PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M " , 0 xd0909443),
PCMCIA_DEVICE_PROD_ID12("TRANSCEND" , "TS1GCF45" , 0 x709b1bf1, 0 xf68b6f32),
PCMCIA_DEVICE_PROD_ID12("TRANSCEND" , "TS1GCF80" , 0 x709b1bf1, 0 x2a54d4b1),
PCMCIA_DEVICE_PROD_ID12("TRANSCEND" , "TS2GCF120" , 0 x709b1bf1, 0 x969aa4f2),
PCMCIA_DEVICE_PROD_ID12("TRANSCEND" , "TS4GCF120" , 0 x709b1bf1, 0 xf54a91c8),
PCMCIA_DEVICE_PROD_ID12("TRANSCEND" , "TS4GCF133" , 0 x709b1bf1, 0 x7558f133),
PCMCIA_DEVICE_PROD_ID12("TRANSCEND" , "TS8GCF133" , 0 x709b1bf1, 0 xb2f89b47),
PCMCIA_DEVICE_PROD_ID12("WIT" , "IDE16" , 0 x244e5994, 0 x3e232852),
PCMCIA_DEVICE_PROD_ID12("WEIDA" , "TWTTI" , 0 xcc7cf69c, 0 x212bb918),
PCMCIA_DEVICE_PROD_ID1("STI Flash" , 0 xe4a13209),
PCMCIA_DEVICE_PROD_ID12("STI" , "Flash 5.0" , 0 xbf2df18d, 0 x8cb57a0e),
PCMCIA_MFC_DEVICE_PROD_ID12(1 , "SanDisk" , "ConnectPlus" , 0 x7a954bd9, 0 x74be00c6),
PCMCIA_DEVICE_PROD_ID2("Flash Card" , 0 x5a362506),
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);
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