MODULE_DESCRIPTION("SMC IrCC SIR/FIR controller driver");
MODULE_LICENSE("GPL");
-static int ircc_dma = 255;
+static int smsc_nopnp = 1;
+module_param_named(nopnp, smsc_nopnp, bool, 0);
+MODULE_PARM_DESC(nopnp, "Do not use PNP to detect controller settings, defaults to true");
+
+#define DMA_INVAL 255
+static int ircc_dma = DMA_INVAL;
module_param(ircc_dma, int, 0);
MODULE_PARM_DESC(ircc_dma, "DMA channel");
-static int ircc_irq = 255;
+#define IRQ_INVAL 255
+static int ircc_irq = IRQ_INVAL;
module_param(ircc_irq, int, 0);
MODULE_PARM_DESC(ircc_irq, "IRQ line");
iobase + IRCC_MASTER);
}
-#ifdef CONFIG_PNP
/* PNP hotplug support */
static const struct pnp_device_id smsc_ircc_pnp_table[] = {
{ .id = "SMCf010", .driver_data = 0 },
{ }
};
MODULE_DEVICE_TABLE(pnp, smsc_ircc_pnp_table);
-#endif
+
+static int pnp_driver_registered;
+
+static int __init smsc_ircc_pnp_probe(struct pnp_dev *dev,
+ const struct pnp_device_id *dev_id)
+{
+ unsigned int firbase, sirbase;
+ u8 dma, irq;
+
+ if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) &&
+ pnp_dma_valid(dev, 0) && pnp_irq_valid(dev, 0)))
+ return -EINVAL;
+
+ sirbase = pnp_port_start(dev, 0);
+ firbase = pnp_port_start(dev, 1);
+ dma = pnp_dma(dev, 0);
+ irq = pnp_irq(dev, 0);
+
+ if (smsc_ircc_open(firbase, sirbase, dma, irq))
+ return -ENODEV;
+
+ return 0;
+}
+
+static struct pnp_driver smsc_ircc_pnp_driver = {
+ .name = "smsc-ircc2",
+ .id_table = smsc_ircc_pnp_table,
+ .probe = smsc_ircc_pnp_probe,
+};
/*******************************************************************************
*
*******************************************************************************/
-/*
- * Function smsc_ircc_init ()
- *
- * Initialize chip. Just try to find out how many chips we are dealing with
- * and where they are
- */
-static int __init smsc_ircc_init(void)
+static int __init smsc_ircc_legacy_probe(void)
{
- int ret;
-
- IRDA_DEBUG(1, "%s\n", __FUNCTION__);
-
- ret = platform_driver_register(&smsc_ircc_driver);
- if (ret) {
- IRDA_ERROR("%s, Can't register driver!\n", driver_name);
- return ret;
- }
+ int ret = 0;
#ifdef CONFIG_PCI
if (smsc_ircc_preconfigure_subsystems(ircc_cfg, ircc_fir, ircc_sir, ircc_dma, ircc_irq) < 0) {
}
#endif
- dev_count = 0;
-
if (ircc_fir > 0 && ircc_sir > 0) {
IRDA_MESSAGE(" Overriding FIR address 0x%04x\n", ircc_fir);
IRDA_MESSAGE(" Overriding SIR address 0x%04x\n", ircc_sir);
if (smsc_ircc_look_for_chips() > 0)
ret = 0;
}
+ return ret;
+}
+
+/*
+ * Function smsc_ircc_init ()
+ *
+ * Initialize chip. Just try to find out how many chips we are dealing with
+ * and where they are
+ */
+static int __init smsc_ircc_init(void)
+{
+ int ret;
+
+ IRDA_DEBUG(1, "%s\n", __FUNCTION__);
+
+ ret = platform_driver_register(&smsc_ircc_driver);
+ if (ret) {
+ IRDA_ERROR("%s, Can't register driver!\n", driver_name);
+ return ret;
+ }
+
+ dev_count = 0;
- if (ret)
+ if (smsc_nopnp || !pnp_platform_devices ||
+ ircc_cfg || ircc_fir || ircc_sir ||
+ ircc_dma != DMA_INVAL || ircc_irq != IRQ_INVAL) {
+ ret = smsc_ircc_legacy_probe();
+ } else {
+ if (pnp_register_driver(&smsc_ircc_pnp_driver) == 0)
+ pnp_driver_registered = 1;
+ }
+
+ if (ret) {
+ if (pnp_driver_registered)
+ pnp_unregister_driver(&smsc_ircc_pnp_driver);
platform_driver_unregister(&smsc_ircc_driver);
+ }
return ret;
}
goto err_out1;
}
- SET_MODULE_OWNER(dev);
-
dev->hard_start_xmit = smsc_ircc_hard_xmit_sir;
#if SMSC_IRCC2_C_NET_TIMEOUT
dev->tx_timeout = smsc_ircc_timeout;
self->io.fifo_size = SMSC_IRCC2_FIFO_SIZE;
self->io.speed = SMSC_IRCC2_C_IRDA_FALLBACK_SPEED;
- if (irq < 255) {
+ if (irq != IRQ_INVAL) {
if (irq != chip_irq)
IRDA_MESSAGE("%s, Overriding IRQ - chip says %d, using %d\n",
driver_name, chip_irq, irq);
} else
self->io.irq = chip_irq;
- if (dma < 255) {
+ if (dma != DMA_INVAL) {
if (dma != chip_dma)
IRDA_MESSAGE("%s, Overriding DMA - chip says %d, using %d\n",
driver_name, chip_dma, dma);
smsc_ircc_close(dev_self[i]);
}
+ if (pnp_driver_registered)
+ pnp_unregister_driver(&smsc_ircc_pnp_driver);
+
platform_driver_unregister(&smsc_ircc_driver);
}
tmpconf.fir_io = ircc_fir;
if (ircc_sir != 0)
tmpconf.sir_io = ircc_sir;
- if (ircc_dma != 0xff)
+ if (ircc_dma != DMA_INVAL)
tmpconf.fir_dma = ircc_dma;
- if (ircc_irq != 0xff)
+ if (ircc_irq != IRQ_INVAL)
tmpconf.fir_irq = ircc_irq;
IRDA_MESSAGE("Detected unconfigured %s SMSC IrDA chip, pre-configuring device.\n", conf->name);