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.h>
24 #include <pcmcia/cistpl.h>
25 #include <pcmcia/cisreg.h>
26 #include <pcmcia/ds.h>
28 #include <linux/usb/sl811.h>
30 MODULE_AUTHOR("Botond Botyanszki");
31 MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6");
32 MODULE_LICENSE("GPL");
35 /*====================================================================*/
37 /*====================================================================*/
39 #define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
41 /*====================================================================*/
43 /*====================================================================*/
45 typedef struct local_info_t {
46 struct pcmcia_device *p_dev;
49 static void sl811_cs_release(struct pcmcia_device * link);
51 /*====================================================================*/
53 static void release_platform_dev(struct device * dev)
55 dev_dbg(dev, "sl811_cs platform_dev release\n");
59 static struct sl811_platform_data platform_data = {
61 .power = 50, /* == 100mA */
62 // .reset = ... FIXME: invoke CF reset on the card
65 static struct resource resources[] = {
67 .flags = IORESOURCE_IRQ,
71 .flags = IORESOURCE_IO,
75 .flags = IORESOURCE_IO,
79 extern struct platform_driver sl811h_driver;
81 static struct platform_device platform_dev = {
84 .platform_data = &platform_data,
85 .release = release_platform_dev,
87 .resource = resources,
88 .num_resources = ARRAY_SIZE(resources),
91 static int sl811_hc_init(struct device *parent, resource_size_t base_addr,
94 if (platform_dev.dev.parent)
96 platform_dev.dev.parent = parent;
98 /* finish seting up the platform device */
99 resources[0].start = irq;
101 resources[1].start = base_addr;
102 resources[1].end = base_addr;
104 resources[2].start = base_addr + 1;
105 resources[2].end = base_addr + 1;
107 /* The driver core will probe for us. We know sl811-hcd has been
108 * initialized already because of the link order dependency created
109 * by referencing "sl811h_driver".
111 platform_dev.name = sl811h_driver.driver.name;
112 return platform_device_register(&platform_dev);
115 /*====================================================================*/
117 static void sl811_cs_detach(struct pcmcia_device *link)
119 dev_dbg(&link->dev, "sl811_cs_detach\n");
121 sl811_cs_release(link);
123 /* This points to the parent local_info_t struct */
127 static void sl811_cs_release(struct pcmcia_device * link)
129 dev_dbg(&link->dev, "sl811_cs_release\n");
131 pcmcia_disable_device(link);
132 platform_device_unregister(&platform_dev);
135 static int sl811_cs_config_check(struct pcmcia_device *p_dev,
136 cistpl_cftable_entry_t *cfg,
137 cistpl_cftable_entry_t *dflt,
144 /* Use power settings for Vcc and Vpp if present */
145 /* Note that the CIS values need to be rescaled */
146 if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
147 if (cfg->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
149 } else if (dflt->vcc.present & (1<<CISTPL_POWER_VNOM)) {
150 if (dflt->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
154 if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
156 cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
157 else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
159 dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
161 /* we need an interrupt */
162 p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
164 /* IO window settings */
165 p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
166 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
167 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
169 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
170 p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
171 p_dev->io.BasePort1 = io->win[0].base;
172 p_dev->io.NumPorts1 = io->win[0].len;
174 return pcmcia_request_io(p_dev, &p_dev->io);
176 pcmcia_disable_device(p_dev);
181 static int sl811_cs_config(struct pcmcia_device *link)
183 struct device *parent = &link->dev;
186 dev_dbg(&link->dev, "sl811_cs_config\n");
188 if (pcmcia_loop_config(link, sl811_cs_config_check, NULL))
191 /* require an IRQ and two registers */
192 if (resource_size(link->resource[0]) < 2)
198 ret = pcmcia_request_configuration(link, &link->conf);
202 dev_info(&link->dev, "index 0x%02x: ",
203 link->conf.ConfigIndex);
205 printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
206 printk(", irq %d", link->irq);
207 printk(", io %pR", link->resource[0]);
210 if (sl811_hc_init(parent, link->resource[0]->start, link->irq)
213 printk(KERN_WARNING "sl811_cs_config failed\n");
214 sl811_cs_release(link);
220 static int sl811_cs_probe(struct pcmcia_device *link)
224 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
230 link->conf.Attributes = 0;
231 link->conf.IntType = INT_MEMORY_AND_IO;
233 return sl811_cs_config(link);
236 static struct pcmcia_device_id sl811_ids[] = {
237 PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
240 MODULE_DEVICE_TABLE(pcmcia, sl811_ids);
242 static struct pcmcia_driver sl811_cs_driver = {
243 .owner = THIS_MODULE,
247 .probe = sl811_cs_probe,
248 .remove = sl811_cs_detach,
249 .id_table = sl811_ids,
252 /*====================================================================*/
254 static int __init init_sl811_cs(void)
256 return pcmcia_register_driver(&sl811_cs_driver);
258 module_init(init_sl811_cs);
260 static void __exit exit_sl811_cs(void)
262 pcmcia_unregister_driver(&sl811_cs_driver);
264 module_exit(exit_sl811_cs);