Root/
1 | /* |
2 | * UIO Hilscher CIF card driver |
3 | * |
4 | * (C) 2007 Hans J. Koch <hjk@hansjkoch.de> |
5 | * Original code (C) 2005 Benedikt Spranger <b.spranger@linutronix.de> |
6 | * |
7 | * Licensed under GPL version 2 only. |
8 | * |
9 | */ |
10 | |
11 | #include <linux/device.h> |
12 | #include <linux/module.h> |
13 | #include <linux/pci.h> |
14 | #include <linux/slab.h> |
15 | #include <linux/uio_driver.h> |
16 | |
17 | #include <asm/io.h> |
18 | |
19 | #define PLX9030_INTCSR 0x4C |
20 | #define INTSCR_INT1_ENABLE 0x01 |
21 | #define INTSCR_INT1_STATUS 0x04 |
22 | #define INT1_ENABLED_AND_ACTIVE (INTSCR_INT1_ENABLE | INTSCR_INT1_STATUS) |
23 | |
24 | #define PCI_SUBVENDOR_ID_PEP 0x1518 |
25 | #define CIF_SUBDEVICE_PROFIBUS 0x430 |
26 | #define CIF_SUBDEVICE_DEVICENET 0x432 |
27 | |
28 | |
29 | static irqreturn_t hilscher_handler(int irq, struct uio_info *dev_info) |
30 | { |
31 | void __iomem *plx_intscr = dev_info->mem[0].internal_addr |
32 | + PLX9030_INTCSR; |
33 | |
34 | if ((ioread8(plx_intscr) & INT1_ENABLED_AND_ACTIVE) |
35 | != INT1_ENABLED_AND_ACTIVE) |
36 | return IRQ_NONE; |
37 | |
38 | /* Disable interrupt */ |
39 | iowrite8(ioread8(plx_intscr) & ~INTSCR_INT1_ENABLE, plx_intscr); |
40 | return IRQ_HANDLED; |
41 | } |
42 | |
43 | static int hilscher_pci_probe(struct pci_dev *dev, |
44 | const struct pci_device_id *id) |
45 | { |
46 | struct uio_info *info; |
47 | |
48 | info = kzalloc(sizeof(struct uio_info), GFP_KERNEL); |
49 | if (!info) |
50 | return -ENOMEM; |
51 | |
52 | if (pci_enable_device(dev)) |
53 | goto out_free; |
54 | |
55 | if (pci_request_regions(dev, "hilscher")) |
56 | goto out_disable; |
57 | |
58 | info->mem[0].addr = pci_resource_start(dev, 0); |
59 | if (!info->mem[0].addr) |
60 | goto out_release; |
61 | info->mem[0].internal_addr = pci_ioremap_bar(dev, 0); |
62 | if (!info->mem[0].internal_addr) |
63 | goto out_release; |
64 | |
65 | info->mem[0].size = pci_resource_len(dev, 0); |
66 | info->mem[0].memtype = UIO_MEM_PHYS; |
67 | info->mem[1].addr = pci_resource_start(dev, 2); |
68 | info->mem[1].size = pci_resource_len(dev, 2); |
69 | info->mem[1].memtype = UIO_MEM_PHYS; |
70 | switch (id->subdevice) { |
71 | case CIF_SUBDEVICE_PROFIBUS: |
72 | info->name = "CIF_Profibus"; |
73 | break; |
74 | case CIF_SUBDEVICE_DEVICENET: |
75 | info->name = "CIF_Devicenet"; |
76 | break; |
77 | default: |
78 | info->name = "CIF_???"; |
79 | } |
80 | info->version = "0.0.1"; |
81 | info->irq = dev->irq; |
82 | info->irq_flags = IRQF_SHARED; |
83 | info->handler = hilscher_handler; |
84 | |
85 | if (uio_register_device(&dev->dev, info)) |
86 | goto out_unmap; |
87 | |
88 | pci_set_drvdata(dev, info); |
89 | |
90 | return 0; |
91 | out_unmap: |
92 | iounmap(info->mem[0].internal_addr); |
93 | out_release: |
94 | pci_release_regions(dev); |
95 | out_disable: |
96 | pci_disable_device(dev); |
97 | out_free: |
98 | kfree (info); |
99 | return -ENODEV; |
100 | } |
101 | |
102 | static void hilscher_pci_remove(struct pci_dev *dev) |
103 | { |
104 | struct uio_info *info = pci_get_drvdata(dev); |
105 | |
106 | uio_unregister_device(info); |
107 | pci_release_regions(dev); |
108 | pci_disable_device(dev); |
109 | pci_set_drvdata(dev, NULL); |
110 | iounmap(info->mem[0].internal_addr); |
111 | |
112 | kfree (info); |
113 | } |
114 | |
115 | static struct pci_device_id hilscher_pci_ids[] = { |
116 | { |
117 | .vendor = PCI_VENDOR_ID_PLX, |
118 | .device = PCI_DEVICE_ID_PLX_9030, |
119 | .subvendor = PCI_SUBVENDOR_ID_PEP, |
120 | .subdevice = CIF_SUBDEVICE_PROFIBUS, |
121 | }, |
122 | { |
123 | .vendor = PCI_VENDOR_ID_PLX, |
124 | .device = PCI_DEVICE_ID_PLX_9030, |
125 | .subvendor = PCI_SUBVENDOR_ID_PEP, |
126 | .subdevice = CIF_SUBDEVICE_DEVICENET, |
127 | }, |
128 | { 0, } |
129 | }; |
130 | |
131 | static struct pci_driver hilscher_pci_driver = { |
132 | .name = "hilscher", |
133 | .id_table = hilscher_pci_ids, |
134 | .probe = hilscher_pci_probe, |
135 | .remove = hilscher_pci_remove, |
136 | }; |
137 | |
138 | static int __init hilscher_init_module(void) |
139 | { |
140 | return pci_register_driver(&hilscher_pci_driver); |
141 | } |
142 | |
143 | static void __exit hilscher_exit_module(void) |
144 | { |
145 | pci_unregister_driver(&hilscher_pci_driver); |
146 | } |
147 | |
148 | module_init(hilscher_init_module); |
149 | module_exit(hilscher_exit_module); |
150 | |
151 | MODULE_DEVICE_TABLE(pci, hilscher_pci_ids); |
152 | MODULE_LICENSE("GPL v2"); |
153 | MODULE_AUTHOR("Hans J. Koch, Benedikt Spranger"); |
154 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9