pci.c (adf9c3c85615f41c08559086e0d9ecdc6cc9db71) pci.c (9024c495f35be735a917571406fab30a789c27d1)
1/*
2 * pci.c - DesignWare HS OTG Controller PCI driver
3 *
4 * Copyright (C) 2004-2013 Synopsys, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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45#include <linux/interrupt.h>
46#include <linux/io.h>
47#include <linux/slab.h>
48#include <linux/pci.h>
49#include <linux/usb.h>
50
51#include <linux/usb/hcd.h>
52#include <linux/usb/ch11.h>
1/*
2 * pci.c - DesignWare HS OTG Controller PCI driver
3 *
4 * Copyright (C) 2004-2013 Synopsys, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

--- 36 unchanged lines hidden (view full) ---

45#include <linux/interrupt.h>
46#include <linux/io.h>
47#include <linux/slab.h>
48#include <linux/pci.h>
49#include <linux/usb.h>
50
51#include <linux/usb/hcd.h>
52#include <linux/usb/ch11.h>
53#include <linux/platform_device.h>
54#include <linux/usb/usb_phy_generic.h>
53
55
54#include "core.h"
55#include "hcd.h"
56
57#define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0
58
56#define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0
57
59static const char dwc2_driver_name[] = "dwc2";
58static const char dwc2_driver_name[] = "dwc2-pci";
60
59
61static const struct dwc2_core_params dwc2_module_params = {
62 .otg_cap = -1,
63 .otg_ver = -1,
64 .dma_enable = -1,
65 .dma_desc_enable = 0,
66 .speed = -1,
67 .enable_dynamic_fifo = -1,
68 .en_multiple_tx_fifo = -1,
69 .host_rx_fifo_size = 1024,
70 .host_nperio_tx_fifo_size = 256,
71 .host_perio_tx_fifo_size = 1024,
72 .max_transfer_size = 65535,
73 .max_packet_count = 511,
74 .host_channels = -1,
75 .phy_type = -1,
76 .phy_utmi_width = -1,
77 .phy_ulpi_ddr = -1,
78 .phy_ulpi_ext_vbus = -1,
79 .i2c_enable = -1,
80 .ulpi_fs_ls = -1,
81 .host_support_fs_ls_low_power = -1,
82 .host_ls_low_power_phy_clk = -1,
83 .ts_dline = -1,
84 .reload_ctl = -1,
85 .ahbcfg = -1,
86 .uframe_sched = -1,
60struct dwc2_pci_glue {
61 struct platform_device *dwc2;
62 struct platform_device *phy;
87};
88
63};
64
89/**
90 * dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the
91 * DWC_otg driver
92 *
93 * @dev: Bus device
94 *
95 * This routine is called, for example, when the rmmod command is executed. The
96 * device may or may not be electrically present. If it is present, the driver
97 * stops device processing. Any resources used on behalf of this device are
98 * freed.
99 */
100static void dwc2_driver_remove(struct pci_dev *dev)
65static void dwc2_pci_remove(struct pci_dev *pci)
101{
66{
102 struct dwc2_hsotg *hsotg = pci_get_drvdata(dev);
67 struct dwc2_pci_glue *glue = pci_get_drvdata(pci);
103
68
104 dwc2_hcd_remove(hsotg);
105 pci_disable_device(dev);
69 platform_device_unregister(glue->dwc2);
70 usb_phy_generic_unregister(glue->phy);
71 kfree(glue);
72 pci_set_drvdata(pci, NULL);
106}
107
73}
74
108/**
109 * dwc2_driver_probe() - Called when the DWC_otg core is bound to the DWC_otg
110 * driver
111 *
112 * @dev: Bus device
113 *
114 * This routine creates the driver components required to control the device
115 * (core, HCD, and PCD) and initializes the device. The driver components are
116 * stored in a dwc2_hsotg structure. A reference to the dwc2_hsotg is saved
117 * in the device private data. This allows the driver to access the dwc2_hsotg
118 * structure on subsequent calls to driver methods for this device.
119 */
120static int dwc2_driver_probe(struct pci_dev *dev,
121 const struct pci_device_id *id)
75static int dwc2_pci_probe(struct pci_dev *pci,
76 const struct pci_device_id *id)
122{
77{
123 struct dwc2_hsotg *hsotg;
124 int retval;
78 struct resource res[2];
79 struct platform_device *dwc2;
80 struct platform_device *phy;
81 int ret;
82 struct device *dev = &pci->dev;
83 struct dwc2_pci_glue *glue;
125
84
126 hsotg = devm_kzalloc(&dev->dev, sizeof(*hsotg), GFP_KERNEL);
127 if (!hsotg)
85 ret = pcim_enable_device(pci);
86 if (ret) {
87 dev_err(dev, "failed to enable pci device\n");
88 return -ENODEV;
89 }
90
91 pci_set_master(pci);
92
93 dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO);
94 if (!dwc2) {
95 dev_err(dev, "couldn't allocate dwc2 device\n");
128 return -ENOMEM;
96 return -ENOMEM;
97 }
129
98
130 hsotg->dev = &dev->dev;
131 hsotg->regs = devm_ioremap_resource(&dev->dev, &dev->resource[0]);
132 if (IS_ERR(hsotg->regs))
133 return PTR_ERR(hsotg->regs);
99 memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
134
100
135 dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n",
136 (unsigned long)pci_resource_start(dev, 0), hsotg->regs);
101 res[0].start = pci_resource_start(pci, 0);
102 res[0].end = pci_resource_end(pci, 0);
103 res[0].name = "dwc2";
104 res[0].flags = IORESOURCE_MEM;
137
105
138 if (pci_enable_device(dev) < 0)
139 return -ENODEV;
106 res[1].start = pci->irq;
107 res[1].name = "dwc2";
108 res[1].flags = IORESOURCE_IRQ;
140
109
141 pci_set_master(dev);
110 ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res));
111 if (ret) {
112 dev_err(dev, "couldn't add resources to dwc2 device\n");
113 return ret;
114 }
142
115
143 retval = devm_request_irq(hsotg->dev, dev->irq,
144 dwc2_handle_common_intr, IRQF_SHARED,
145 dev_name(hsotg->dev), hsotg);
146 if (retval)
147 return retval;
116 dwc2->dev.parent = dev;
148
117
149 spin_lock_init(&hsotg->lock);
150 retval = dwc2_hcd_init(hsotg, dev->irq, &dwc2_module_params);
151 if (retval) {
152 pci_disable_device(dev);
153 return retval;
118 phy = usb_phy_generic_register();
119 if (IS_ERR(phy)) {
120 dev_err(dev, "error registering generic PHY (%ld)\n",
121 PTR_ERR(phy));
122 return PTR_ERR(phy);
154 }
155
123 }
124
156 pci_set_drvdata(dev, hsotg);
125 ret = platform_device_add(dwc2);
126 if (ret) {
127 dev_err(dev, "failed to register dwc2 device\n");
128 goto err;
129 }
157
130
158 return retval;
131 glue = kzalloc(sizeof(*glue), GFP_KERNEL);
132 if (!glue)
133 return -ENOMEM;
134
135 glue->phy = phy;
136 glue->dwc2 = dwc2;
137 pci_set_drvdata(pci, glue);
138
139 return 0;
140err:
141 usb_phy_generic_unregister(phy);
142 platform_device_put(dwc2);
143 return ret;
159}
160
161static const struct pci_device_id dwc2_pci_ids[] = {
162 {
163 PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG),
164 },
165 {
166 PCI_DEVICE(PCI_VENDOR_ID_STMICRO,
167 PCI_DEVICE_ID_STMICRO_USB_OTG),
168 },
169 { /* end: all zeroes */ }
170};
171MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
172
173static struct pci_driver dwc2_pci_driver = {
174 .name = dwc2_driver_name,
175 .id_table = dwc2_pci_ids,
144}
145
146static const struct pci_device_id dwc2_pci_ids[] = {
147 {
148 PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG),
149 },
150 {
151 PCI_DEVICE(PCI_VENDOR_ID_STMICRO,
152 PCI_DEVICE_ID_STMICRO_USB_OTG),
153 },
154 { /* end: all zeroes */ }
155};
156MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
157
158static struct pci_driver dwc2_pci_driver = {
159 .name = dwc2_driver_name,
160 .id_table = dwc2_pci_ids,
176 .probe = dwc2_driver_probe,
177 .remove = dwc2_driver_remove,
161 .probe = dwc2_pci_probe,
162 .remove = dwc2_pci_remove,
178};
179
180module_pci_driver(dwc2_pci_driver);
181
182MODULE_DESCRIPTION("DESIGNWARE HS OTG PCI Bus Glue");
183MODULE_AUTHOR("Synopsys, Inc.");
184MODULE_LICENSE("Dual BSD/GPL");
163};
164
165module_pci_driver(dwc2_pci_driver);
166
167MODULE_DESCRIPTION("DESIGNWARE HS OTG PCI Bus Glue");
168MODULE_AUTHOR("Synopsys, Inc.");
169MODULE_LICENSE("Dual BSD/GPL");