cregit-Linux how code gets into the kernel

Release 4.11 drivers/ide/ide-cs.c

Directory: drivers/ide
/*======================================================================

    A driver for PCMCIA IDE/ATA disk cards

    The contents of this file are subject to the Mozilla Public
    License Version 1.1 (the "License"); you may not use this file
    except in compliance with the License. You may obtain a copy of
    the License at http://www.mozilla.org/MPL/

    Software distributed under the License is distributed on an "AS
    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
    implied. See the License for the specific language governing
    rights and limitations under the License.

    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.

    Alternatively, the contents of this file may be used under the
    terms of the GNU General Public License version 2 (the "GPL"), in
    which case the provisions of the GPL are applicable instead of the
    above.  If you wish to allow the use of your version of this file
    only under the terms of the GPL and not to allow others to use
    your version of this file under the MPL, indicate your decision
    by deleting the provisions above and replace them with the notice
    and other provisions required by the GPL.  If you do not delete
    the provisions above, a recipient may use your version of this
    file under either the MPL or the GPL.

======================================================================*/

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/ide.h>
#include <linux/major.h>
#include <linux/delay.h>
#include <asm/io.h>

#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ciscode.h>


#define DRV_NAME "ide-cs"

/*====================================================================*/

/* Module parameters */

MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver");
MODULE_LICENSE("Dual MPL/GPL");

/*====================================================================*/


typedef struct ide_info_t {
	
struct pcmcia_device	*p_dev;
	
struct ide_host		*host;
	
int			ndev;
} 
ide_info_t;

static void ide_release(struct pcmcia_device *);
static int ide_config(struct pcmcia_device *);

static void ide_detach(struct pcmcia_device *p_dev);


static int ide_probe(struct pcmcia_device *link) { ide_info_t *info; dev_dbg(&link->dev, "ide_attach()\n"); /* Create new ide device */ info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; info->p_dev = link; link->priv = info; link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO | CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC; return ide_config(link); }

Contributors

PersonTokensPropCommitsCommitProp
Jens Axboe5064.10%110.00%
Dominik Brodowski2734.62%880.00%
Deepak Saxena11.28%110.00%
Total78100.00%10100.00%

/* ide_attach */
static void ide_detach(struct pcmcia_device *link) { ide_info_t *info = link->priv; dev_dbg(&link->dev, "ide_detach(0x%p)\n", link); ide_release(link); kfree(info); }

Contributors

PersonTokensPropCommitsCommitProp
Jens Axboe2253.66%120.00%
Bartlomiej Zolnierkiewicz1126.83%120.00%
Dominik Brodowski819.51%360.00%
Total41100.00%5100.00%

/* ide_detach */ static const struct ide_port_ops idecs_port_ops = { .quirkproc = ide_undecoded_slave, }; static const struct ide_port_info idecs_port_info = { .port_ops = &idecs_port_ops, .host_flags = IDE_HFLAG_NO_DMA, .irq_flags = IRQF_SHARED, .chipset = ide_pci, };
static struct ide_host *idecs_register(unsigned long io, unsigned long ctl, unsigned long irq, struct pcmcia_device *handle) { struct ide_host *host; ide_hwif_t *hwif; int i, rc; struct ide_hw hw, *hws[] = { &hw }; if (!request_region(io, 8, DRV_NAME)) { printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", DRV_NAME, io, io + 7); return NULL; } if (!request_region(ctl, 1, DRV_NAME)) { printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", DRV_NAME, ctl); release_region(io, 8); return NULL; } memset(&hw, 0, sizeof(hw)); ide_std_init_ports(&hw, io, ctl); hw.irq = irq; hw.dev = &handle->dev; rc = ide_host_add(&idecs_port_info, hws, 1, &host); if (rc) goto out_release; hwif = host->ports[0]; if (hwif->present) return host; /* retry registration in case device is still spinning up */ for (i = 0; i < 10; i++) { msleep(100); ide_port_scan(hwif); if (hwif->present) return host; } return host; out_release: release_region(ctl, 1); release_region(io, 8); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Bartlomiej Zolnierkiewicz20581.35%1071.43%
Jens Axboe249.52%17.14%
Hannes Reinecke124.76%17.14%
Alan Cox62.38%17.14%
David Hinds51.98%17.14%
Total252100.00%14100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Dominik Brodowski11775.97%758.33%
Jens Axboe2818.18%18.33%
Andrew Morton42.60%18.33%
Julia Lawall31.95%18.33%
Bartlomiej Zolnierkiewicz10.65%18.33%
Adrian Bunk10.65%18.33%
Total154100.00%12100.00%


static int ide_config(struct pcmcia_device *link) { ide_info_t *info = link->priv; int ret = 0, is_kme = 0; unsigned long io_base, ctl_base; struct ide_host *host; dev_dbg(&link->dev, "ide_config(0x%p)\n", link); is_kme = ((link->manf_id == MANFID_KME) && ((link->card_id == PRODID_KME_KXLC005_A) || (link->card_id == PRODID_KME_KXLC005_B))); if (pcmcia_loop_config(link, pcmcia_check_one_config, &is_kme)) { link->config_flags &= ~CONF_AUTO_CHECK_VCC; if (pcmcia_loop_config(link, pcmcia_check_one_config, &is_kme)) goto failed; /* No suitable config found */ } io_base = link->resource[0]->start; if (link->resource[1]->end) ctl_base = link->resource[1]->start; else ctl_base = link->resource[0]->start + 0x0e; if (!link->irq) goto failed; ret = pcmcia_enable_device(link); if (ret) goto failed; /* disable drive interrupts during IDE probe */ outb(0x02, ctl_base); /* special setup for KXLC005 card */ if (is_kme) outb(0x81, ctl_base+1); host = idecs_register(io_base, ctl_base, link->irq, link); if (host == NULL && resource_size(link->resource[0]) == 0x20) { outb(0x02, ctl_base + 0x10); host = idecs_register(io_base + 0x10, ctl_base + 0x10, link->irq, link); } if (host == NULL) goto failed; info->ndev = 1; info->host = host; dev_info(&link->dev, "ide-cs: hd%c: Vpp = %d.%d\n", 'a' + host->ports[0]->index * 2, link->vpp / 10, link->vpp % 10); return 0; failed: ide_release(link); return -ENODEV; }

Contributors

PersonTokensPropCommitsCommitProp
Dominik Brodowski19356.10%1155.00%
Jens Axboe10129.36%15.00%
David Hinds205.81%15.00%
Bartlomiej Zolnierkiewicz205.81%420.00%
Linus Torvalds72.03%15.00%
Hannes Reinecke20.58%15.00%
Andrew Morton10.29%15.00%
Total344100.00%20100.00%

/* ide_config */
static void ide_release(struct pcmcia_device *link) { ide_info_t *info = link->priv; struct ide_host *host = info->host; dev_dbg(&link->dev, "ide_release(0x%p)\n", link); if (info->ndev) { ide_hwif_t *hwif = host->ports[0]; unsigned long data_addr, ctl_addr; data_addr = hwif->io_ports.data_addr; ctl_addr = hwif->io_ports.ctl_addr; ide_host_remove(host); info->ndev = 0; release_region(ctl_addr, 1); release_region(data_addr, 8); } pcmcia_disable_device(link); }

Contributors

PersonTokensPropCommitsCommitProp
Wolfram Sang4944.14%111.11%
Jens Axboe4036.04%111.11%
Bartlomiej Zolnierkiewicz119.91%222.22%
Dominik Brodowski87.21%333.33%
Christoph Hellwig21.80%111.11%
Larry Finger10.90%111.11%
Total111100.00%9100.00%

/* ide_release */ static const struct pcmcia_device_id ide_ids[] = { 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, ide_ids); static struct pcmcia_driver ide_cs_driver = { .owner = THIS_MODULE, .name = "ide-cs", .probe = ide_probe, .remove = ide_detach, .id_table = ide_ids, };
static int __init init_ide_cs(void) { return pcmcia_register_driver(&ide_cs_driver); }

Contributors

PersonTokensPropCommitsCommitProp
Jens Axboe1487.50%150.00%
Christoph Hellwig212.50%150.00%
Total16100.00%2100.00%


static void __exit exit_ide_cs(void) { pcmcia_unregister_driver(&ide_cs_driver); }

Contributors

PersonTokensPropCommitsCommitProp
Jens Axboe1386.67%150.00%
Christoph Hellwig213.33%150.00%
Total15100.00%2100.00%

late_initcall(init_ide_cs); module_exit(exit_ide_cs);

Overall Contributors

PersonTokensPropCommitsCommitProp
Dominik Brodowski74039.13%2331.08%
Jens Axboe37519.83%11.35%
Bartlomiej Zolnierkiewicz30015.86%1621.62%
Marcin Juszkiewicz774.07%34.05%
Kristoffer Ericson743.91%45.41%
Wolfram Sang603.17%22.70%
David Hinds472.49%11.35%
Richard Purdie382.01%11.35%
Christoph Hellwig301.59%22.70%
Magnus Damm261.37%11.35%
Matt Reimer221.16%22.70%
Hannes Reinecke140.74%11.35%
Pavel Roskin130.69%11.35%
Fabrice Aeschbacher110.58%11.35%
Thomas Kleffel110.58%11.35%
Christophe Niclaes80.42%11.35%
Marc Pignat70.37%11.35%
Linus Torvalds70.37%11.35%
David Brownell70.37%11.35%
Alan Cox60.32%11.35%
Andrew Morton50.26%11.35%
Nishanth Aravamudan30.16%11.35%
Julia Lawall30.16%11.35%
Jun Komuro20.11%11.35%
Larry Finger10.05%11.35%
Russell King10.05%11.35%
Deepak Saxena10.05%11.35%
Joe Perches10.05%11.35%
Adrian Bunk10.05%11.35%
Total1891100.00%74100.00%
Directory: drivers/ide
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