2 * PCMCIA driver for SL811HS (as found in REX-CFU1U)
4 * Author: Yukio Yamamoto
6 * Port to sl811-hcd and 2.6.x by
7 * Botond Botyanszki <boti@rocketmail.com>
10 * Last update: 2005-05-12
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/init.h>
16 #include <linux/ptrace.h>
17 #include <linux/slab.h>
18 #include <linux/string.h>
19 #include <linux/timer.h>
20 #include <linux/ioport.h>
21 #include <linux/platform_device.h>
23 #include <pcmcia/cistpl.h>
24 #include <pcmcia/cisreg.h>
25 #include <pcmcia/ds.h>
27 #include <linux/usb/sl811.h>
29 MODULE_AUTHOR("Botond Botyanszki");
30 MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6");
31 MODULE_LICENSE("GPL");
34 /*====================================================================*/
36 /*====================================================================*/
38 #define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
40 /*====================================================================*/
42 /*====================================================================*/
44 typedef struct local_info_t
{
45 struct pcmcia_device
*p_dev
;
48 static void sl811_cs_release(struct pcmcia_device
* link
);
50 /*====================================================================*/
52 static void release_platform_dev(struct device
* dev
)
54 dev_dbg(dev
, "sl811_cs platform_dev release\n");
58 static struct sl811_platform_data platform_data
= {
60 .power
= 50, /* == 100mA */
61 // .reset = ... FIXME: invoke CF reset on the card
64 static struct resource resources
[] = {
66 .flags
= IORESOURCE_IRQ
,
70 .flags
= IORESOURCE_IO
,
74 .flags
= IORESOURCE_IO
,
78 extern struct platform_driver sl811h_driver
;
80 static struct platform_device platform_dev
= {
83 .platform_data
= &platform_data
,
84 .release
= release_platform_dev
,
86 .resource
= resources
,
87 .num_resources
= ARRAY_SIZE(resources
),
90 static int sl811_hc_init(struct device
*parent
, resource_size_t base_addr
,
93 if (platform_dev
.dev
.parent
)
95 platform_dev
.dev
.parent
= parent
;
97 /* finish seting up the platform device */
98 resources
[0].start
= irq
;
100 resources
[1].start
= base_addr
;
101 resources
[1].end
= base_addr
;
103 resources
[2].start
= base_addr
+ 1;
104 resources
[2].end
= base_addr
+ 1;
106 /* The driver core will probe for us. We know sl811-hcd has been
107 * initialized already because of the link order dependency created
108 * by referencing "sl811h_driver".
110 platform_dev
.name
= sl811h_driver
.driver
.name
;
111 return platform_device_register(&platform_dev
);
114 /*====================================================================*/
116 static void sl811_cs_detach(struct pcmcia_device
*link
)
118 dev_dbg(&link
->dev
, "sl811_cs_detach\n");
120 sl811_cs_release(link
);
122 /* This points to the parent local_info_t struct */
126 static void sl811_cs_release(struct pcmcia_device
* link
)
128 dev_dbg(&link
->dev
, "sl811_cs_release\n");
130 pcmcia_disable_device(link
);
131 platform_device_unregister(&platform_dev
);
134 static int sl811_cs_config_check(struct pcmcia_device
*p_dev
,
135 cistpl_cftable_entry_t
*cfg
,
136 cistpl_cftable_entry_t
*dflt
,
143 /* Use power settings for Vcc and Vpp if present */
144 /* Note that the CIS values need to be rescaled */
145 if (cfg
->vcc
.present
& (1<<CISTPL_POWER_VNOM
)) {
146 if (cfg
->vcc
.param
[CISTPL_POWER_VNOM
]/10000 != vcc
)
148 } else if (dflt
->vcc
.present
& (1<<CISTPL_POWER_VNOM
)) {
149 if (dflt
->vcc
.param
[CISTPL_POWER_VNOM
]/10000 != vcc
)
153 if (cfg
->vpp1
.present
& (1<<CISTPL_POWER_VNOM
))
155 cfg
->vpp1
.param
[CISTPL_POWER_VNOM
]/10000;
156 else if (dflt
->vpp1
.present
& (1<<CISTPL_POWER_VNOM
))
158 dflt
->vpp1
.param
[CISTPL_POWER_VNOM
]/10000;
160 /* we need an interrupt */
161 p_dev
->config_flags
|= CONF_ENABLE_IRQ
;
163 /* IO window settings */
164 p_dev
->resource
[0]->end
= p_dev
->resource
[1]->end
= 0;
165 if ((cfg
->io
.nwin
> 0) || (dflt
->io
.nwin
> 0)) {
166 cistpl_io_t
*io
= (cfg
->io
.nwin
) ? &cfg
->io
: &dflt
->io
;
167 p_dev
->io_lines
= io
->flags
& CISTPL_IO_LINES_MASK
;
169 p_dev
->resource
[0]->flags
|= IO_DATA_PATH_WIDTH_8
;
170 p_dev
->resource
[0]->start
= io
->win
[0].base
;
171 p_dev
->resource
[0]->end
= io
->win
[0].len
;
173 return pcmcia_request_io(p_dev
);
175 pcmcia_disable_device(p_dev
);
180 static int sl811_cs_config(struct pcmcia_device
*link
)
182 struct device
*parent
= &link
->dev
;
185 dev_dbg(&link
->dev
, "sl811_cs_config\n");
187 if (pcmcia_loop_config(link
, sl811_cs_config_check
, NULL
))
190 /* require an IRQ and two registers */
191 if (resource_size(link
->resource
[0]) < 2)
197 ret
= pcmcia_enable_device(link
);
201 dev_info(&link
->dev
, "index 0x%02x: ",
204 printk(", Vpp %d.%d", link
->vpp
/10, link
->vpp
%10);
205 printk(", irq %d", link
->irq
);
206 printk(", io %pR", link
->resource
[0]);
209 if (sl811_hc_init(parent
, link
->resource
[0]->start
, link
->irq
)
212 printk(KERN_WARNING
"sl811_cs_config failed\n");
213 sl811_cs_release(link
);
219 static int sl811_cs_probe(struct pcmcia_device
*link
)
223 local
= kzalloc(sizeof(local_info_t
), GFP_KERNEL
);
229 return sl811_cs_config(link
);
232 static struct pcmcia_device_id sl811_ids
[] = {
233 PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
236 MODULE_DEVICE_TABLE(pcmcia
, sl811_ids
);
238 static struct pcmcia_driver sl811_cs_driver
= {
239 .owner
= THIS_MODULE
,
243 .probe
= sl811_cs_probe
,
244 .remove
= sl811_cs_detach
,
245 .id_table
= sl811_ids
,
248 /*====================================================================*/
250 static int __init
init_sl811_cs(void)
252 return pcmcia_register_driver(&sl811_cs_driver
);
254 module_init(init_sl811_cs
);
256 static void __exit
exit_sl811_cs(void)
258 pcmcia_unregister_driver(&sl811_cs_driver
);
260 module_exit(exit_sl811_cs
);