1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 1996-2002 Russell King.
4 */
5
6 #include <linux/module.h>
7 #include <linux/blkdev.h>
8 #include <linux/errno.h>
9 #include <linux/ide.h>
10 #include <linux/init.h>
11
12 #include <asm/ecard.h>
13
14 static const struct ide_port_info rapide_port_info = {
15 .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
16 .chipset = ide_generic,
17 };
18
rapide_setup_ports(struct ide_hw * hw,void __iomem * base,void __iomem * ctrl,unsigned int sz,int irq)19 static void rapide_setup_ports(struct ide_hw *hw, void __iomem *base,
20 void __iomem *ctrl, unsigned int sz, int irq)
21 {
22 unsigned long port = (unsigned long)base;
23 int i;
24
25 for (i = 0; i <= 7; i++) {
26 hw->io_ports_array[i] = port;
27 port += sz;
28 }
29 hw->io_ports.ctl_addr = (unsigned long)ctrl;
30 hw->irq = irq;
31 }
32
rapide_probe(struct expansion_card * ec,const struct ecard_id * id)33 static int rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
34 {
35 void __iomem *base;
36 struct ide_host *host;
37 int ret;
38 struct ide_hw hw, *hws[] = { &hw };
39
40 ret = ecard_request_resources(ec);
41 if (ret)
42 goto out;
43
44 base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
45 if (!base) {
46 ret = -ENOMEM;
47 goto release;
48 }
49
50 memset(&hw, 0, sizeof(hw));
51 rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq);
52 hw.dev = &ec->dev;
53
54 ret = ide_host_add(&rapide_port_info, hws, 1, &host);
55 if (ret)
56 goto release;
57
58 ecard_set_drvdata(ec, host);
59 goto out;
60
61 release:
62 ecard_release_resources(ec);
63 out:
64 return ret;
65 }
66
rapide_remove(struct expansion_card * ec)67 static void rapide_remove(struct expansion_card *ec)
68 {
69 struct ide_host *host = ecard_get_drvdata(ec);
70
71 ecard_set_drvdata(ec, NULL);
72
73 ide_host_remove(host);
74
75 ecard_release_resources(ec);
76 }
77
78 static struct ecard_id rapide_ids[] = {
79 { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
80 { 0xffff, 0xffff }
81 };
82
83 static struct ecard_driver rapide_driver = {
84 .probe = rapide_probe,
85 .remove = rapide_remove,
86 .id_table = rapide_ids,
87 .drv = {
88 .name = "rapide",
89 },
90 };
91
rapide_init(void)92 static int __init rapide_init(void)
93 {
94 return ecard_register_driver(&rapide_driver);
95 }
96
rapide_exit(void)97 static void __exit rapide_exit(void)
98 {
99 ecard_remove_driver(&rapide_driver);
100 }
101
102 MODULE_LICENSE("GPL");
103 MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
104
105 module_init(rapide_init);
106 module_exit(rapide_exit);
107