]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blame - drivers/ide/ide_platform.c
ide: replace special_t typedef by IDE_SFLAG_* flags
[mirror_ubuntu-zesty-kernel.git] / drivers / ide / ide_platform.c
CommitLineData
8cb1f567
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1/*
2 * Platform IDE driver
3 *
4 * Copyright (C) 2007 MontaVista Software
5 *
6 * Maintainer: Kumar Gala <galak@kernel.crashing.org>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 */
13
14#include <linux/types.h>
15#include <linux/init.h>
16#include <linux/kernel.h>
17#include <linux/ide.h>
18#include <linux/ioport.h>
19#include <linux/module.h>
0a87e3e9 20#include <linux/ata_platform.h>
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21#include <linux/platform_device.h>
22#include <linux/io.h>
23
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24static void __devinit plat_ide_setup_ports(hw_regs_t *hw,
25 void __iomem *base,
26 void __iomem *ctrl,
27 struct pata_platform_info *pdata,
28 int irq)
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29{
30 unsigned long port = (unsigned long)base;
baa8f3e9 31 int i;
8cb1f567 32
4c3032d8 33 hw->io_ports.data_addr = port;
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34
35 port += (1 << pdata->ioport_shift);
4c3032d8 36 for (i = 1; i <= 7;
8cb1f567 37 i++, port += (1 << pdata->ioport_shift))
4c3032d8 38 hw->io_ports_array[i] = port;
8cb1f567 39
4c3032d8 40 hw->io_ports.ctl_addr = (unsigned long)ctrl;
8cb1f567 41
57c802e8 42 hw->irq = irq;
8cb1f567 43
57c802e8 44 hw->chipset = ide_generic;
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45}
46
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47static const struct ide_port_info platform_ide_port_info = {
48 .host_flags = IDE_HFLAG_NO_DMA,
49};
50
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51static int __devinit plat_ide_probe(struct platform_device *pdev)
52{
53 struct resource *res_base, *res_alt, *res_irq;
04244937 54 void __iomem *base, *alt_base;
8cb1f567 55 struct pata_platform_info *pdata;
48c3c107 56 struct ide_host *host;
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57 int ret = 0, mmio = 0;
58 hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
7b60fa16 59 struct ide_port_info d = platform_ide_port_info;
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60
61 pdata = pdev->dev.platform_data;
62
63 /* get a pointer to the register memory */
64 res_base = platform_get_resource(pdev, IORESOURCE_IO, 0);
65 res_alt = platform_get_resource(pdev, IORESOURCE_IO, 1);
66
67 if (!res_base || !res_alt) {
68 res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
69 res_alt = platform_get_resource(pdev, IORESOURCE_MEM, 1);
70 if (!res_base || !res_alt) {
71 ret = -ENOMEM;
72 goto out;
73 }
74 mmio = 1;
75 }
76
77 res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
78 if (!res_irq) {
79 ret = -EINVAL;
80 goto out;
81 }
82
83 if (mmio) {
04244937 84 base = devm_ioremap(&pdev->dev,
8cb1f567 85 res_base->start, res_base->end - res_base->start + 1);
04244937 86 alt_base = devm_ioremap(&pdev->dev,
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87 res_alt->start, res_alt->end - res_alt->start + 1);
88 } else {
04244937 89 base = devm_ioport_map(&pdev->dev,
8cb1f567 90 res_base->start, res_base->end - res_base->start + 1);
04244937 91 alt_base = devm_ioport_map(&pdev->dev,
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92 res_alt->start, res_alt->end - res_alt->start + 1);
93 }
94
57c802e8 95 memset(&hw, 0, sizeof(hw));
04244937 96 plat_ide_setup_ports(&hw, base, alt_base, pdata, res_irq->start);
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97 hw.dev = &pdev->dev;
98
761052e6 99 if (mmio)
7b60fa16 100 d.host_flags |= IDE_HFLAG_MMIO;
57c802e8 101
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102 ret = ide_host_add(&d, hws, &host);
103 if (ret)
48c3c107 104 goto out;
8cb1f567 105
48c3c107 106 platform_set_drvdata(pdev, host);
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107
108 return 0;
109
110out:
111 return ret;
112}
113
114static int __devexit plat_ide_remove(struct platform_device *pdev)
115{
48c3c107 116 struct ide_host *host = pdev->dev.driver_data;
8cb1f567 117
48c3c107 118 ide_host_remove(host);
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119
120 return 0;
121}
122
123static struct platform_driver platform_ide_driver = {
124 .driver = {
125 .name = "pata_platform",
458622fc 126 .owner = THIS_MODULE,
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127 },
128 .probe = plat_ide_probe,
129 .remove = __devexit_p(plat_ide_remove),
130};
131
132static int __init platform_ide_init(void)
133{
134 return platform_driver_register(&platform_ide_driver);
135}
136
137static void __exit platform_ide_exit(void)
138{
139 platform_driver_unregister(&platform_ide_driver);
140}
141
142MODULE_DESCRIPTION("Platform IDE driver");
143MODULE_LICENSE("GPL");
458622fc 144MODULE_ALIAS("platform:pata_platform");
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145
146module_init(platform_ide_init);
147module_exit(platform_ide_exit);