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/cs_types.h>
24 #include <pcmcia/cs.h>
25 #include <pcmcia/cistpl.h>
26 #include <pcmcia/cisreg.h>
27 #include <pcmcia/ds.h>
29 #include <linux/usb/sl811.h>
31 MODULE_AUTHOR("Botond Botyanszki");
32 MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6");
33 MODULE_LICENSE("GPL");
36 /*====================================================================*/
38 /*====================================================================*/
40 #define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
42 /*====================================================================*/
44 /*====================================================================*/
46 static const char driver_name
[DEV_NAME_LEN
] = "sl811_cs";
48 typedef struct local_info_t
{
49 struct pcmcia_device
*p_dev
;
52 static void sl811_cs_release(struct pcmcia_device
* link
);
54 /*====================================================================*/
56 static void release_platform_dev(struct device
* dev
)
58 dev_dbg(dev
, "sl811_cs platform_dev release\n");
62 static struct sl811_platform_data platform_data
= {
64 .power
= 50, /* == 100mA */
65 // .reset = ... FIXME: invoke CF reset on the card
68 static struct resource resources
[] = {
70 .flags
= IORESOURCE_IRQ
,
74 .flags
= IORESOURCE_IO
,
78 .flags
= IORESOURCE_IO
,
82 extern struct platform_driver sl811h_driver
;
84 static struct platform_device platform_dev
= {
87 .platform_data
= &platform_data
,
88 .release
= release_platform_dev
,
90 .resource
= resources
,
91 .num_resources
= ARRAY_SIZE(resources
),
94 static int sl811_hc_init(struct device
*parent
, resource_size_t base_addr
,
97 if (platform_dev
.dev
.parent
)
99 platform_dev
.dev
.parent
= parent
;
101 /* finish seting up the platform device */
102 resources
[0].start
= irq
;
104 resources
[1].start
= base_addr
;
105 resources
[1].end
= base_addr
;
107 resources
[2].start
= base_addr
+ 1;
108 resources
[2].end
= base_addr
+ 1;
110 /* The driver core will probe for us. We know sl811-hcd has been
111 * initialized already because of the link order dependency created
112 * by referencing "sl811h_driver".
114 platform_dev
.name
= sl811h_driver
.driver
.name
;
115 return platform_device_register(&platform_dev
);
118 /*====================================================================*/
120 static void sl811_cs_detach(struct pcmcia_device
*link
)
122 dev_dbg(&link
->dev
, "sl811_cs_detach\n");
124 sl811_cs_release(link
);
126 /* This points to the parent local_info_t struct */
130 static void sl811_cs_release(struct pcmcia_device
* link
)
132 dev_dbg(&link
->dev
, "sl811_cs_release\n");
134 pcmcia_disable_device(link
);
135 platform_device_unregister(&platform_dev
);
138 static int sl811_cs_config_check(struct pcmcia_device
*p_dev
,
139 cistpl_cftable_entry_t
*cfg
,
140 cistpl_cftable_entry_t
*dflt
,
147 /* Use power settings for Vcc and Vpp if present */
148 /* Note that the CIS values need to be rescaled */
149 if (cfg
->vcc
.present
& (1<<CISTPL_POWER_VNOM
)) {
150 if (cfg
->vcc
.param
[CISTPL_POWER_VNOM
]/10000 != vcc
)
152 } else if (dflt
->vcc
.present
& (1<<CISTPL_POWER_VNOM
)) {
153 if (dflt
->vcc
.param
[CISTPL_POWER_VNOM
]/10000 != vcc
)
157 if (cfg
->vpp1
.present
& (1<<CISTPL_POWER_VNOM
))
159 cfg
->vpp1
.param
[CISTPL_POWER_VNOM
]/10000;
160 else if (dflt
->vpp1
.present
& (1<<CISTPL_POWER_VNOM
))
162 dflt
->vpp1
.param
[CISTPL_POWER_VNOM
]/10000;
164 /* we need an interrupt */
165 p_dev
->conf
.Attributes
|= CONF_ENABLE_IRQ
;
167 /* IO window settings */
168 p_dev
->io
.NumPorts1
= p_dev
->io
.NumPorts2
= 0;
169 if ((cfg
->io
.nwin
> 0) || (dflt
->io
.nwin
> 0)) {
170 cistpl_io_t
*io
= (cfg
->io
.nwin
) ? &cfg
->io
: &dflt
->io
;
172 p_dev
->io
.Attributes1
= IO_DATA_PATH_WIDTH_8
;
173 p_dev
->io
.IOAddrLines
= io
->flags
& CISTPL_IO_LINES_MASK
;
174 p_dev
->io
.BasePort1
= io
->win
[0].base
;
175 p_dev
->io
.NumPorts1
= io
->win
[0].len
;
177 return pcmcia_request_io(p_dev
, &p_dev
->io
);
179 pcmcia_disable_device(p_dev
);
184 static int sl811_cs_config(struct pcmcia_device
*link
)
186 struct device
*parent
= &link
->dev
;
189 dev_dbg(&link
->dev
, "sl811_cs_config\n");
191 if (pcmcia_loop_config(link
, sl811_cs_config_check
, NULL
))
194 /* require an IRQ and two registers */
195 if (!link
->io
.NumPorts1
|| link
->io
.NumPorts1
< 2)
201 ret
= pcmcia_request_configuration(link
, &link
->conf
);
205 dev_info(&link
->dev
, "index 0x%02x: ",
206 link
->conf
.ConfigIndex
);
208 printk(", Vpp %d.%d", link
->conf
.Vpp
/10, link
->conf
.Vpp
%10);
209 printk(", irq %d", link
->irq
);
210 printk(", io 0x%04x-0x%04x", link
->io
.BasePort1
,
211 link
->io
.BasePort1
+link
->io
.NumPorts1
-1);
214 if (sl811_hc_init(parent
, link
->io
.BasePort1
, link
->irq
)
217 printk(KERN_WARNING
"sl811_cs_config failed\n");
218 sl811_cs_release(link
);
224 static int sl811_cs_probe(struct pcmcia_device
*link
)
228 local
= kzalloc(sizeof(local_info_t
), GFP_KERNEL
);
234 link
->conf
.Attributes
= 0;
235 link
->conf
.IntType
= INT_MEMORY_AND_IO
;
237 return sl811_cs_config(link
);
240 static struct pcmcia_device_id sl811_ids
[] = {
241 PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
244 MODULE_DEVICE_TABLE(pcmcia
, sl811_ids
);
246 static struct pcmcia_driver sl811_cs_driver
= {
247 .owner
= THIS_MODULE
,
249 .name
= (char *)driver_name
,
251 .probe
= sl811_cs_probe
,
252 .remove
= sl811_cs_detach
,
253 .id_table
= sl811_ids
,
256 /*====================================================================*/
258 static int __init
init_sl811_cs(void)
260 return pcmcia_register_driver(&sl811_cs_driver
);
262 module_init(init_sl811_cs
);
264 static void __exit
exit_sl811_cs(void)
266 pcmcia_unregister_driver(&sl811_cs_driver
);
268 module_exit(exit_sl811_cs
);