Contributors: 13
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Alexander Shishkin |
219 |
36.14% |
8 |
32.00% |
| David Lopo |
142 |
23.43% |
1 |
4.00% |
| Andy Shevchenko |
94 |
15.51% |
2 |
8.00% |
| Pavankumar Kondeti |
93 |
15.35% |
3 |
12.00% |
| Richard Zhao |
24 |
3.96% |
2 |
8.00% |
| Wei Yongjun |
9 |
1.49% |
1 |
4.00% |
| David Cohen |
7 |
1.16% |
1 |
4.00% |
| Jingoo Han |
6 |
0.99% |
1 |
4.00% |
| Sergei Shtylyov |
6 |
0.99% |
1 |
4.00% |
| Tejun Heo |
2 |
0.33% |
1 |
4.00% |
| Greg Kroah-Hartman |
2 |
0.33% |
2 |
8.00% |
| Axel Lin |
1 |
0.17% |
1 |
4.00% |
| Lee Jones |
1 |
0.17% |
1 |
4.00% |
| Total |
606 |
|
25 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* ci_hdrc_pci.c - MIPS USB IP core family device controller
*
* Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
*
* Author: David Lopo
*/
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/usb/gadget.h>
#include <linux/usb/chipidea.h>
#include <linux/usb/usb_phy_generic.h>
/* driver name */
#define UDC_DRIVER_NAME "ci_hdrc_pci"
struct ci_hdrc_pci {
struct platform_device *ci;
struct platform_device *phy;
};
/******************************************************************************
* PCI block
*****************************************************************************/
static struct ci_hdrc_platform_data pci_platdata = {
.name = UDC_DRIVER_NAME,
.capoffset = DEF_CAPOFFSET,
};
static struct ci_hdrc_platform_data langwell_pci_platdata = {
.name = UDC_DRIVER_NAME,
.capoffset = 0,
};
static struct ci_hdrc_platform_data penwell_pci_platdata = {
.name = UDC_DRIVER_NAME,
.capoffset = 0,
.power_budget = 200,
};
/**
* ci_hdrc_pci_probe: PCI probe
* @pdev: USB device controller being probed
* @id: PCI hotplug ID connecting controller to UDC framework
*
* This function returns an error code
* Allocates basic PCI resources for this USB device controller, and then
* invokes the udc_probe() method to start the UDC associated with it
*/
static int ci_hdrc_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct ci_hdrc_platform_data *platdata = (void *)id->driver_data;
struct ci_hdrc_pci *ci;
struct resource res[3];
int retval = 0, nres = 2;
if (!platdata) {
dev_err(&pdev->dev, "device doesn't provide driver data\n");
return -ENODEV;
}
ci = devm_kzalloc(&pdev->dev, sizeof(*ci), GFP_KERNEL);
if (!ci)
return -ENOMEM;
retval = pcim_enable_device(pdev);
if (retval)
return retval;
if (!pdev->irq) {
dev_err(&pdev->dev, "No IRQ, check BIOS/PCI setup!");
return -ENODEV;
}
pci_set_master(pdev);
pci_try_set_mwi(pdev);
/* register a nop PHY */
ci->phy = usb_phy_generic_register();
if (IS_ERR(ci->phy))
return PTR_ERR(ci->phy);
memset(res, 0, sizeof(res));
res[0].start = pci_resource_start(pdev, 0);
res[0].end = pci_resource_end(pdev, 0);
res[0].flags = IORESOURCE_MEM;
res[1].start = pdev->irq;
res[1].flags = IORESOURCE_IRQ;
ci->ci = ci_hdrc_add_device(&pdev->dev, res, nres, platdata);
if (IS_ERR(ci->ci)) {
dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n");
usb_phy_generic_unregister(ci->phy);
return PTR_ERR(ci->ci);
}
pci_set_drvdata(pdev, ci);
return 0;
}
/**
* ci_hdrc_pci_remove: PCI remove
* @pdev: USB Device Controller being removed
*
* Reverses the effect of ci_hdrc_pci_probe(),
* first invoking the udc_remove() and then releases
* all PCI resources allocated for this USB device controller
*/
static void ci_hdrc_pci_remove(struct pci_dev *pdev)
{
struct ci_hdrc_pci *ci = pci_get_drvdata(pdev);
ci_hdrc_remove_device(ci->ci);
usb_phy_generic_unregister(ci->phy);
}
/*
* PCI device table
* PCI device structure
*
* Check "pci.h" for details
*
* Note: ehci-pci driver may try to probe the device first. You have to add an
* ID to the bypass_pci_id_table in ehci-pci driver to prevent this.
*/
static const struct pci_device_id ci_hdrc_pci_id_table[] = {
{
PCI_DEVICE(0x153F, 0x1004),
.driver_data = (kernel_ulong_t)&pci_platdata,
},
{
PCI_DEVICE(0x153F, 0x1006),
.driver_data = (kernel_ulong_t)&pci_platdata,
},
{
PCI_VDEVICE(INTEL, 0x0811),
.driver_data = (kernel_ulong_t)&langwell_pci_platdata,
},
{
PCI_VDEVICE(INTEL, 0x0829),
.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
},
{
/* Intel Clovertrail */
PCI_VDEVICE(INTEL, 0xe006),
.driver_data = (kernel_ulong_t)&penwell_pci_platdata,
},
{ 0 } /* end: all zeroes */
};
MODULE_DEVICE_TABLE(pci, ci_hdrc_pci_id_table);
static struct pci_driver ci_hdrc_pci_driver = {
.name = UDC_DRIVER_NAME,
.id_table = ci_hdrc_pci_id_table,
.probe = ci_hdrc_pci_probe,
.remove = ci_hdrc_pci_remove,
};
module_pci_driver(ci_hdrc_pci_driver);
MODULE_AUTHOR("MIPS - David Lopo <dlopo@chipidea.mips.com>");
MODULE_DESCRIPTION("MIPS CI13XXX USB Peripheral Controller");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:ci13xxx_pci");