129 lines
2.7 KiB
C
129 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* bdc_pci.c - BRCM BDC USB3.0 device controller PCI interface file.
|
|
*
|
|
* Copyright (C) 2014 Broadcom Corporation
|
|
*
|
|
* Author: Ashwini Pahuja
|
|
*
|
|
* Based on drivers under drivers/usb/
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/pci_ids.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include "bdc.h"
|
|
|
|
#define BDC_PCI_PID 0x1570
|
|
|
|
struct bdc_pci {
|
|
struct device *dev;
|
|
struct platform_device *bdc;
|
|
};
|
|
|
|
static int bdc_setup_msi(struct pci_dev *pci)
|
|
{
|
|
int ret;
|
|
|
|
ret = pci_enable_msi(pci);
|
|
if (ret) {
|
|
pr_err("failed to allocate MSI entry\n");
|
|
return ret;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int bdc_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
|
|
{
|
|
struct resource res[2];
|
|
struct platform_device *bdc;
|
|
struct bdc_pci *glue;
|
|
int ret = -ENOMEM;
|
|
|
|
glue = devm_kzalloc(&pci->dev, sizeof(*glue), GFP_KERNEL);
|
|
if (!glue)
|
|
return -ENOMEM;
|
|
|
|
glue->dev = &pci->dev;
|
|
ret = pci_enable_device(pci);
|
|
if (ret) {
|
|
dev_err(&pci->dev, "failed to enable pci device\n");
|
|
return -ENODEV;
|
|
}
|
|
pci_set_master(pci);
|
|
|
|
bdc = platform_device_alloc(BRCM_BDC_NAME, PLATFORM_DEVID_AUTO);
|
|
if (!bdc)
|
|
return -ENOMEM;
|
|
|
|
memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
|
|
bdc_setup_msi(pci);
|
|
|
|
res[0].start = pci_resource_start(pci, 0);
|
|
res[0].end = pci_resource_end(pci, 0);
|
|
res[0].name = BRCM_BDC_NAME;
|
|
res[0].flags = IORESOURCE_MEM;
|
|
|
|
res[1].start = pci->irq;
|
|
res[1].name = BRCM_BDC_NAME;
|
|
res[1].flags = IORESOURCE_IRQ;
|
|
|
|
ret = platform_device_add_resources(bdc, res, ARRAY_SIZE(res));
|
|
if (ret) {
|
|
dev_err(&pci->dev,
|
|
"couldn't add resources to bdc device\n");
|
|
platform_device_put(bdc);
|
|
return ret;
|
|
}
|
|
|
|
pci_set_drvdata(pci, glue);
|
|
|
|
dma_set_coherent_mask(&bdc->dev, pci->dev.coherent_dma_mask);
|
|
|
|
bdc->dev.dma_mask = pci->dev.dma_mask;
|
|
bdc->dev.dma_parms = pci->dev.dma_parms;
|
|
bdc->dev.parent = &pci->dev;
|
|
glue->bdc = bdc;
|
|
|
|
ret = platform_device_add(bdc);
|
|
if (ret) {
|
|
dev_err(&pci->dev, "failed to register bdc device\n");
|
|
platform_device_put(bdc);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void bdc_pci_remove(struct pci_dev *pci)
|
|
{
|
|
struct bdc_pci *glue = pci_get_drvdata(pci);
|
|
|
|
platform_device_unregister(glue->bdc);
|
|
pci_disable_msi(pci);
|
|
}
|
|
|
|
static struct pci_device_id bdc_pci_id_table[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, BDC_PCI_PID), },
|
|
{} /* Terminating Entry */
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, bdc_pci_id_table);
|
|
|
|
static struct pci_driver bdc_pci_driver = {
|
|
.name = "bdc-pci",
|
|
.id_table = bdc_pci_id_table,
|
|
.probe = bdc_pci_probe,
|
|
.remove = bdc_pci_remove,
|
|
};
|
|
|
|
MODULE_AUTHOR("Ashwini Pahuja <ashwini.linux@gmail.com>");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("BRCM BDC USB3 PCI Glue layer");
|
|
module_pci_driver(bdc_pci_driver);
|