summaryrefslogtreecommitdiffstats
path: root/drivers/usb/host/sl811_cs.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--drivers/usb/host/sl811_cs.c203
1 files changed, 203 insertions, 0 deletions
diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
new file mode 100644
index 000000000..16d157013
--- /dev/null
+++ b/drivers/usb/host/sl811_cs.c
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PCMCIA driver for SL811HS (as found in REX-CFU1U)
+ * Filename: sl811_cs.c
+ * Author: Yukio Yamamoto
+ *
+ * Port to sl811-hcd and 2.6.x by
+ * Botond Botyanszki <boti@rocketmail.com>
+ * Simon Pickering
+ *
+ * Last update: 2005-05-12
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+
+#include <linux/usb/sl811.h>
+
+MODULE_AUTHOR("Botond Botyanszki");
+MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6");
+MODULE_LICENSE("GPL");
+
+
+/*====================================================================*/
+/* MACROS */
+/*====================================================================*/
+
+#define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
+
+/*====================================================================*/
+/* VARIABLES */
+/*====================================================================*/
+
+typedef struct local_info_t {
+ struct pcmcia_device *p_dev;
+} local_info_t;
+
+static void sl811_cs_release(struct pcmcia_device * link);
+
+/*====================================================================*/
+
+static void release_platform_dev(struct device * dev)
+{
+ dev_dbg(dev, "sl811_cs platform_dev release\n");
+ dev->parent = NULL;
+}
+
+static struct sl811_platform_data platform_data = {
+ .potpg = 100,
+ .power = 50, /* == 100mA */
+ // .reset = ... FIXME: invoke CF reset on the card
+};
+
+static struct resource resources[] = {
+ [0] = {
+ .flags = IORESOURCE_IRQ,
+ },
+ [1] = {
+ // .name = "address",
+ .flags = IORESOURCE_IO,
+ },
+ [2] = {
+ // .name = "data",
+ .flags = IORESOURCE_IO,
+ },
+};
+
+extern struct platform_driver sl811h_driver;
+
+static struct platform_device platform_dev = {
+ .id = -1,
+ .dev = {
+ .platform_data = &platform_data,
+ .release = release_platform_dev,
+ },
+ .resource = resources,
+ .num_resources = ARRAY_SIZE(resources),
+};
+
+static int sl811_hc_init(struct device *parent, resource_size_t base_addr,
+ int irq)
+{
+ if (platform_dev.dev.parent)
+ return -EBUSY;
+ platform_dev.dev.parent = parent;
+
+ /* finish setting up the platform device */
+ resources[0].start = irq;
+
+ resources[1].start = base_addr;
+ resources[1].end = base_addr;
+
+ resources[2].start = base_addr + 1;
+ resources[2].end = base_addr + 1;
+
+ /* The driver core will probe for us. We know sl811-hcd has been
+ * initialized already because of the link order dependency created
+ * by referencing "sl811h_driver".
+ */
+ platform_dev.name = sl811h_driver.driver.name;
+ return platform_device_register(&platform_dev);
+}
+
+/*====================================================================*/
+
+static void sl811_cs_detach(struct pcmcia_device *link)
+{
+ dev_dbg(&link->dev, "sl811_cs_detach\n");
+
+ sl811_cs_release(link);
+
+ /* This points to the parent local_info_t struct */
+ kfree(link->priv);
+}
+
+static void sl811_cs_release(struct pcmcia_device * link)
+{
+ dev_dbg(&link->dev, "sl811_cs_release\n");
+
+ pcmcia_disable_device(link);
+ platform_device_unregister(&platform_dev);
+}
+
+static int sl811_cs_config_check(struct pcmcia_device *p_dev, void *priv_data)
+{
+ if (p_dev->config_index == 0)
+ return -EINVAL;
+
+ return pcmcia_request_io(p_dev);
+}
+
+
+static int sl811_cs_config(struct pcmcia_device *link)
+{
+ struct device *parent = &link->dev;
+ int ret;
+
+ dev_dbg(&link->dev, "sl811_cs_config\n");
+
+ link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
+ CONF_AUTO_CHECK_VCC | CONF_AUTO_SET_IO;
+
+ if (pcmcia_loop_config(link, sl811_cs_config_check, NULL))
+ goto failed;
+
+ /* require an IRQ and two registers */
+ if (resource_size(link->resource[0]) < 2)
+ goto failed;
+
+ if (!link->irq)
+ goto failed;
+
+ ret = pcmcia_enable_device(link);
+ if (ret)
+ goto failed;
+
+ if (sl811_hc_init(parent, link->resource[0]->start, link->irq)
+ < 0) {
+failed:
+ printk(KERN_WARNING "sl811_cs_config failed\n");
+ sl811_cs_release(link);
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static int sl811_cs_probe(struct pcmcia_device *link)
+{
+ local_info_t *local;
+
+ local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
+ if (!local)
+ return -ENOMEM;
+ local->p_dev = link;
+ link->priv = local;
+
+ return sl811_cs_config(link);
+}
+
+static const struct pcmcia_device_id sl811_ids[] = {
+ PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */
+ PCMCIA_DEVICE_NULL,
+};
+MODULE_DEVICE_TABLE(pcmcia, sl811_ids);
+
+static struct pcmcia_driver sl811_cs_driver = {
+ .owner = THIS_MODULE,
+ .name = "sl811_cs",
+ .probe = sl811_cs_probe,
+ .remove = sl811_cs_detach,
+ .id_table = sl811_ids,
+};
+module_pcmcia_driver(sl811_cs_driver);