drivers/parport/parport_cs.c

Source file repositories/reference/linux-study-clean/drivers/parport/parport_cs.c

File Facts

System
Linux kernel
Corpus path
drivers/parport/parport_cs.c
Extension
.c
Size
5645 bytes
Lines
196
Domain
Driver Families
Bucket
drivers/parport
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (p == NULL) {
	    pr_notice("parport_cs: parport_pc_probe_port() at 0x%3x, irq %u failed\n",
		      (unsigned int)link->resource[0]->start, link->irq);
	goto failed;
    }

    p->modes |= PARPORT_MODE_PCSPP;
    if (epp_mode)
	p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP;
    info->ndev = 1;
    info->port = p;

    return 0;

failed:
	parport_cs_release(link);
	kfree(link->priv);
	return -ENODEV;
} /* parport_config */

static void parport_cs_release(struct pcmcia_device *link)
{
	parport_info_t *info = link->priv;

	dev_dbg(&link->dev, "parport_release\n");

	if (info->ndev) {
		struct parport *p = info->port;
		parport_pc_unregister_port(p);
	}
	info->ndev = 0;

	pcmcia_disable_device(link);
} /* parport_cs_release */


static const struct pcmcia_device_id parport_ids[] = {
	PCMCIA_DEVICE_FUNC_ID(3),
	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial+Parallel Port: SP230",0x3beb8cf2,0xdb9e58bc),
	PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0003),
	PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, parport_ids);

static struct pcmcia_driver parport_cs_driver = {
	.owner		= THIS_MODULE,
	.name		= "parport_cs",
	.probe		= parport_probe,
	.remove		= parport_detach,
	.id_table	= parport_ids,
};
module_pcmcia_driver(parport_cs_driver);

Annotation

Implementation Notes