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;
53 static void sl811_cs_release(struct pcmcia_device * link);
55 /*====================================================================*/
57 static void release_platform_dev(struct device * dev)
59 dev_dbg(dev, "sl811_cs platform_dev release\n");
63 static struct sl811_platform_data platform_data = {
65 .power = 50, /* == 100mA */
66 // .reset = ... FIXME: invoke CF reset on the card
69 static struct resource resources[] = {
71 .flags = IORESOURCE_IRQ,
75 .flags = IORESOURCE_IO,
79 .flags = IORESOURCE_IO,
83 extern struct platform_driver sl811h_driver;
85 static struct platform_device platform_dev = {
88 .platform_data = &platform_data,
89 .release = release_platform_dev,
91 .resource = resources,
92 .num_resources = ARRAY_SIZE(resources),
95 static int sl811_hc_init(struct device *parent, resource_size_t base_addr,
98 if (platform_dev.dev.parent)
100 platform_dev.dev.parent = parent;
102 /* finish seting up the platform device */
103 resources[0].start = irq;
105 resources[1].start = base_addr;
106 resources[1].end = base_addr;
108 resources[2].start = base_addr + 1;
109 resources[2].end = base_addr + 1;
111 /* The driver core will probe for us. We know sl811-hcd has been
112 * initialized already because of the link order dependency created
113 * by referencing "sl811h_driver".
115 platform_dev.name = sl811h_driver.driver.name;
116 return platform_device_register(&platform_dev);
119 /*====================================================================*/
121 static void sl811_cs_detach(struct pcmcia_device *link)
123 dev_dbg(&link->dev, "sl811_cs_detach\n");
125 sl811_cs_release(link);
127 /* This points to the parent local_info_t struct */
131 static void sl811_cs_release(struct pcmcia_device * link)
133 dev_dbg(&link->dev, "sl811_cs_release\n");
135 pcmcia_disable_device(link);
136 platform_device_unregister(&platform_dev);
139 static int sl811_cs_config_check(struct pcmcia_device *p_dev,
140 cistpl_cftable_entry_t *cfg,
141 cistpl_cftable_entry_t *dflt,
148 /* Use power settings for Vcc and Vpp if present */
149 /* Note that the CIS values need to be rescaled */
150 if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
151 if (cfg->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
153 } else if (dflt->vcc.present & (1<<CISTPL_POWER_VNOM)) {
154 if (dflt->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc)
158 if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
160 cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
161 else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
163 dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
165 /* we need an interrupt */
166 if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1)
167 p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
169 /* IO window settings */
170 p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
171 if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
172 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
174 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
175 p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
176 p_dev->io.BasePort1 = io->win[0].base;
177 p_dev->io.NumPorts1 = io->win[0].len;
179 return pcmcia_request_io(p_dev, &p_dev->io);
181 pcmcia_disable_device(p_dev);
186 static int sl811_cs_config(struct pcmcia_device *link)
188 struct device *parent = &handle_to_dev(link);
189 local_info_t *dev = link->priv;
192 dev_dbg(&link->dev, "sl811_cs_config\n");
194 if (pcmcia_loop_config(link, sl811_cs_config_check, NULL))
197 /* require an IRQ and two registers */
198 if (!link->io.NumPorts1 || link->io.NumPorts1 < 2)
200 if (link->conf.Attributes & CONF_ENABLE_IRQ) {
201 ret = pcmcia_request_irq(link, &link->irq);
207 ret = pcmcia_request_configuration(link, &link->conf);
211 sprintf(dev->node.dev_name, driver_name);
212 dev->node.major = dev->node.minor = 0;
213 link->dev_node = &dev->node;
215 printk(KERN_INFO "%s: index 0x%02x: ",
216 dev->node.dev_name, link->conf.ConfigIndex);
218 printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
219 printk(", irq %d", link->irq.AssignedIRQ);
220 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
221 link->io.BasePort1+link->io.NumPorts1-1);
224 if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ)
227 printk(KERN_WARNING "sl811_cs_config failed\n");
228 sl811_cs_release(link);
234 static int sl811_cs_probe(struct pcmcia_device *link)
238 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
245 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
246 link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
247 link->irq.Handler = NULL;
249 link->conf.Attributes = 0;
250 link->conf.IntType = INT_MEMORY_AND_IO;
252 return sl811_cs_config(link);
255 static struct pcmcia_device_id sl811_ids[] = {
256 PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
259 MODULE_DEVICE_TABLE(pcmcia, sl811_ids);
261 static struct pcmcia_driver sl811_cs_driver = {
262 .owner = THIS_MODULE,
264 .name = (char *)driver_name,
266 .probe = sl811_cs_probe,
267 .remove = sl811_cs_detach,
268 .id_table = sl811_ids,
271 /*====================================================================*/
273 static int __init init_sl811_cs(void)
275 return pcmcia_register_driver(&sl811_cs_driver);
277 module_init(init_sl811_cs);
279 static void __exit exit_sl811_cs(void)
281 pcmcia_unregister_driver(&sl811_cs_driver);
283 module_exit(exit_sl811_cs);