174 lines
4.7 KiB
C
174 lines
4.7 KiB
C
/**
|
|
* dwc3-pci.c - PCI Specific glue layer
|
|
*
|
|
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
|
|
*
|
|
* Authors: Felipe Balbi <balbi@ti.com>,
|
|
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The names of the above-listed copyright holders may not be used
|
|
* to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* ALTERNATIVELY, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2, as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include "core.h"
|
|
|
|
/* FIXME define these in <linux/pci_ids.h> */
|
|
#define PCI_VENDOR_ID_SYNOPSYS 0x16c3
|
|
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
|
|
|
|
struct dwc3_pci {
|
|
struct device *dev;
|
|
struct platform_device *dwc3;
|
|
};
|
|
|
|
static int __devinit dwc3_pci_probe(struct pci_dev *pci,
|
|
const struct pci_device_id *id)
|
|
{
|
|
struct resource res[2];
|
|
struct platform_device *dwc3;
|
|
struct dwc3_pci *glue;
|
|
int ret = -ENOMEM;
|
|
int devid;
|
|
struct device *dev = &pci->dev;
|
|
|
|
glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
|
|
if (!glue) {
|
|
dev_err(dev, "not enough memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
glue->dev = dev;
|
|
|
|
ret = pci_enable_device(pci);
|
|
if (ret) {
|
|
dev_err(dev, "failed to enable pci device\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
pci_set_power_state(pci, PCI_D0);
|
|
pci_set_master(pci);
|
|
|
|
devid = dwc3_get_device_id();
|
|
if (devid < 0) {
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
dwc3 = platform_device_alloc("dwc3", devid);
|
|
if (!dwc3) {
|
|
dev_err(dev, "couldn't allocate dwc3 device\n");
|
|
ret = -ENOMEM;
|
|
goto err1;
|
|
}
|
|
|
|
memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
|
|
|
|
res[0].start = pci_resource_start(pci, 0);
|
|
res[0].end = pci_resource_end(pci, 0);
|
|
res[0].name = "dwc_usb3";
|
|
res[0].flags = IORESOURCE_MEM;
|
|
|
|
res[1].start = pci->irq;
|
|
res[1].name = "dwc_usb3";
|
|
res[1].flags = IORESOURCE_IRQ;
|
|
|
|
ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
|
|
if (ret) {
|
|
dev_err(dev, "couldn't add resources to dwc3 device\n");
|
|
goto err2;
|
|
}
|
|
|
|
pci_set_drvdata(pci, glue);
|
|
|
|
dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
|
|
|
|
dwc3->dev.dma_mask = dev->dma_mask;
|
|
dwc3->dev.dma_parms = dev->dma_parms;
|
|
dwc3->dev.parent = dev;
|
|
glue->dwc3 = dwc3;
|
|
|
|
ret = platform_device_add(dwc3);
|
|
if (ret) {
|
|
dev_err(dev, "failed to register dwc3 device\n");
|
|
goto err3;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err3:
|
|
pci_set_drvdata(pci, NULL);
|
|
platform_device_put(dwc3);
|
|
|
|
err2:
|
|
dwc3_put_device_id(devid);
|
|
|
|
err1:
|
|
pci_disable_device(pci);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void __devexit dwc3_pci_remove(struct pci_dev *pci)
|
|
{
|
|
struct dwc3_pci *glue = pci_get_drvdata(pci);
|
|
|
|
dwc3_put_device_id(glue->dwc3->id);
|
|
platform_device_unregister(glue->dwc3);
|
|
pci_set_drvdata(pci, NULL);
|
|
pci_disable_device(pci);
|
|
}
|
|
|
|
static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
|
|
{
|
|
PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
|
|
PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
|
|
},
|
|
{ } /* Terminating Entry */
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
|
|
|
|
static struct pci_driver dwc3_pci_driver = {
|
|
.name = "dwc3-pci",
|
|
.id_table = dwc3_pci_id_table,
|
|
.probe = dwc3_pci_probe,
|
|
.remove = __devexit_p(dwc3_pci_remove),
|
|
};
|
|
|
|
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
|
|
|
|
module_pci_driver(dwc3_pci_driver);
|