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 #if defined(DEBUG) || defined(PCMCIA_DEBUG)
42 static int pc_debug = 0;
43 module_param(pc_debug, int, 0644);
45 #define DBG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG "sl811_cs: " args)
48 #define DBG(n, args...) do{}while(0)
49 #endif /* no debugging */
51 #define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
53 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0444)
55 #define CS_CHECK(fn, ret) \
58 if ((last_ret = (ret)) != 0) \
62 /*====================================================================*/
64 /*====================================================================*/
66 static const char driver_name[DEV_NAME_LEN] = "sl811_cs";
68 typedef struct local_info_t {
69 struct pcmcia_device *p_dev;
73 static void sl811_cs_release(struct pcmcia_device * link);
75 /*====================================================================*/
77 static void release_platform_dev(struct device * dev)
79 DBG(0, "sl811_cs platform_dev release\n");
83 static struct sl811_platform_data platform_data = {
85 .power = 50, /* == 100mA */
86 // .reset = ... FIXME: invoke CF reset on the card
89 static struct resource resources[] = {
91 .flags = IORESOURCE_IRQ,
95 .flags = IORESOURCE_IO,
99 .flags = IORESOURCE_IO,
103 extern struct platform_driver sl811h_driver;
105 static struct platform_device platform_dev = {
108 .platform_data = &platform_data,
109 .release = release_platform_dev,
111 .resource = resources,
112 .num_resources = ARRAY_SIZE(resources),
115 static int sl811_hc_init(struct device *parent, ioaddr_t base_addr, int irq)
117 if (platform_dev.dev.parent)
119 platform_dev.dev.parent = parent;
121 /* finish seting up the platform device */
122 resources[0].start = irq;
124 resources[1].start = base_addr;
125 resources[1].end = base_addr;
127 resources[2].start = base_addr + 1;
128 resources[2].end = base_addr + 1;
130 /* The driver core will probe for us. We know sl811-hcd has been
131 * initialized already because of the link order dependency created
132 * by referencing "sl811h_driver".
134 platform_dev.name = sl811h_driver.driver.name;
135 return platform_device_register(&platform_dev);
138 /*====================================================================*/
140 static void sl811_cs_detach(struct pcmcia_device *link)
142 DBG(0, "sl811_cs_detach(0x%p)\n", link);
144 sl811_cs_release(link);
146 /* This points to the parent local_info_t struct */
150 static void sl811_cs_release(struct pcmcia_device * link)
152 DBG(0, "sl811_cs_release(0x%p)\n", link);
154 pcmcia_disable_device(link);
155 platform_device_unregister(&platform_dev);
158 struct sl811_css_cfg {
159 cistpl_cftable_entry_t dflt;
163 static int sl811_cs_config_check(struct pcmcia_device *p_dev,
164 cistpl_cftable_entry_t *cfg,
167 struct sl811_css_cfg *cfg_mem = priv_data;
169 if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
170 memcpy(&cfg_mem->dflt, cfg, sizeof(cistpl_cftable_entry_t));
175 p_dev->conf.ConfigIndex = cfg->index;
177 /* Use power settings for Vcc and Vpp if present */
178 /* Note that the CIS values need to be rescaled */
179 if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
180 if (cfg->vcc.param[CISTPL_POWER_VNOM]/10000 !=
183 } else if (cfg_mem->dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) {
184 if (cfg_mem->dflt.vcc.param[CISTPL_POWER_VNOM]/10000
185 != cfg_mem->conf.Vcc)
189 if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
191 cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
192 else if (cfg_mem->dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
194 cfg_mem->dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
196 /* we need an interrupt */
197 if (cfg->irq.IRQInfo1 || cfg_mem->dflt.irq.IRQInfo1)
198 p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
200 /* IO window settings */
201 p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0;
202 if ((cfg->io.nwin > 0) || (cfg_mem->dflt.io.nwin > 0)) {
203 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &cfg_mem->dflt.io;
205 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
206 p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
207 p_dev->io.BasePort1 = io->win[0].base;
208 p_dev->io.NumPorts1 = io->win[0].len;
210 return pcmcia_request_io(p_dev, &p_dev->io);
212 pcmcia_disable_device(p_dev);
217 static int sl811_cs_config(struct pcmcia_device *link)
219 struct device *parent = &handle_to_dev(link);
220 local_info_t *dev = link->priv;
221 int last_fn, last_ret;
222 struct sl811_css_cfg *cfg_mem;
224 DBG(0, "sl811_cs_config(0x%p)\n", link);
226 cfg_mem = kzalloc(sizeof(struct sl811_css_cfg), GFP_KERNEL);
230 /* Look up the current Vcc */
231 CS_CHECK(GetConfigurationInfo,
232 pcmcia_get_configuration_info(link, &cfg_mem->conf));
234 if (pcmcia_loop_config(link, sl811_cs_config_check, cfg_mem))
237 /* require an IRQ and two registers */
238 if (!link->io.NumPorts1 || link->io.NumPorts1 < 2)
240 if (link->conf.Attributes & CONF_ENABLE_IRQ)
242 pcmcia_request_irq(link, &link->irq));
246 CS_CHECK(RequestConfiguration,
247 pcmcia_request_configuration(link, &link->conf));
249 sprintf(dev->node.dev_name, driver_name);
250 dev->node.major = dev->node.minor = 0;
251 link->dev_node = &dev->node;
253 printk(KERN_INFO "%s: index 0x%02x: ",
254 dev->node.dev_name, link->conf.ConfigIndex);
256 printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10);
257 printk(", irq %d", link->irq.AssignedIRQ);
258 printk(", io 0x%04x-0x%04x", link->io.BasePort1,
259 link->io.BasePort1+link->io.NumPorts1-1);
262 if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ)
265 printk("sl811_cs_config failed\n");
266 cs_error(link, last_fn, last_ret);
267 sl811_cs_release(link);
275 static int sl811_cs_probe(struct pcmcia_device *link)
279 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
286 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
287 link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
288 link->irq.Handler = NULL;
290 link->conf.Attributes = 0;
291 link->conf.IntType = INT_MEMORY_AND_IO;
293 return sl811_cs_config(link);
296 static struct pcmcia_device_id sl811_ids[] = {
297 PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
300 MODULE_DEVICE_TABLE(pcmcia, sl811_ids);
302 static struct pcmcia_driver sl811_cs_driver = {
303 .owner = THIS_MODULE,
305 .name = (char *)driver_name,
307 .probe = sl811_cs_probe,
308 .remove = sl811_cs_detach,
309 .id_table = sl811_ids,
312 /*====================================================================*/
314 static int __init init_sl811_cs(void)
316 return pcmcia_register_driver(&sl811_cs_driver);
318 module_init(init_sl811_cs);
320 static void __exit exit_sl811_cs(void)
322 pcmcia_unregister_driver(&sl811_cs_driver);
324 module_exit(exit_sl811_cs);