* Which again was based on the ohci and uhci drivers.
*/
-#include <linux/autoconf.h>
-#include <linux/moduleparam.h>
-#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
#include <linux/errno.h>
-#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/list.h>
#include <linux/usb.h>
#include <linux/platform_device.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+#include <asm/byteorder.h>
+#include <asm/mach-adm5120/adm5120_info.h>
+
#include "../core/hcd.h"
MODULE_DESCRIPTION("ADM5120 USB Host Controller Driver");
#define ED(ed) ((struct admhcd_ed *)(((u32)(ed)) & ~0xf))
struct admhcd {
+ spinlock_t lock;
+
+ void __iomem *addr_reg;
+ void __iomem *data_reg;
+ /* Root hub registers */
+ u32 rhdesca;
+ u32 rhdescb;
+ u32 rhstatus;
+ u32 rhport[2];
+
+ /* async schedule: control, bulk */
+ struct list_head async;
u32 base;
u32 dma_en;
- spinlock_t lock;
unsigned long flags;
+
};
-#define hcd_to_admhcd(hcd) ((struct admhcd *)(hcd)->hcd_priv)
+static inline struct admhcd *hcd_to_admhcd(struct usb_hcd *hcd)
+{
+ return (struct admhcd *)(hcd->hcd_priv);
+}
+
+static inline struct usb_hcd *admhcd_to_hcd(struct admhcd *admhcd)
+{
+ return container_of((void *)admhcd, struct usb_hcd, hcd_priv);
+}
static char hcd_name[] = "adm5120-hcd";
.hub_control = admhcd_hub_control,
};
+#define resource_len(r) (((r)->end - (r)->start) + 1)
+
static int __init adm5120hcd_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct admhcd *ahcd;
struct usb_device *udev;
- int err = 0;
+ struct resource *addr, *data;
+ void __iomem *addr_reg;
+ void __iomem *data_reg;
+ int irq, err = 0;
- if (!request_mem_region(pdev->resource[0].start,
- pdev->resource[0].end - pdev->resource[0].start, hcd_name)) {
- pr_debug("couldn't request mem\n");
- err = -EBUSY;
+ if (pdev->num_resources < 3) {
+ err = -ENODEV;
goto out;
}
- //hcd = usb_create_hcd(&adm5120_hc_driver, pdev, pdev->bus_id);
- if (!hcd)
- goto out_mem;
+ data = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ addr = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ irq = platform_get_irq(pdev, 0);
- ahcd = hcd_to_admhcd(hcd);
- dev_set_drvdata(pdev, ahcd);
- hcd->self.controller = pdev;
- //hcd->self.bus_name = pdev->bus_id;
- hcd->irq = pdev->resource[1].start;
- hcd->regs = (void *)pdev->resource[0].start;
- hcd->product_desc = hcd_name;
- ahcd->base = pdev->resource[0].start;
-
- if (request_irq(pdev->resource[1].start, adm5120hcd_irq, 0, hcd_name,
- hcd)) {
- pr_debug("couldn't request irq\n");
+ if (!addr || !data || irq < 0) {
+ err = -ENODEV;
+ goto out;
+ }
+
+ if (pdev->dev.dma_mask) {
+ printk(KERN_DEBUG "DMA not supported\n");
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (!request_mem_region(addr->start, 2, hcd_name)) {
+ err = -EBUSY;
+ goto out;
+ }
+ addr_reg = ioremap(addr->start, resource_len(addr));
+ if (addr_reg == NULL) {
+ err = -ENOMEM;
+ goto out_mem;
+ }
+ if (!request_mem_region(data->start, 2, hcd_name)) {
err = -EBUSY;
- goto out_hcd;
+ goto out_unmap;
+ }
+ data_reg = ioremap(data->start, resource_len(data));
+ if (data_reg == NULL) {
+ err = -ENOMEM;
+ goto out_mem;
}
+
- //err = usb_register_bus(&hcd->self);
- //if (err < 0)
- // goto out_irq;
+ hcd = usb_create_hcd(&adm5120_hc_driver, &pdev->dev, pdev->dev.bus_id);
+ if (!hcd)
+ goto out_mem;
+ ahcd = hcd_to_admhcd(hcd);
+ ahcd->data_reg = data_reg;
+ ahcd->addr_reg = addr_reg;
spin_lock_init(&ahcd->lock);
+ INIT_LIST_HEAD(&ahcd->async);
+ /* Initialise the HCD registers */
admhcd_reg_set(ahcd, ADMHCD_REG_INTENABLE, 0);
mdelay(10);
admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_SW_RESET);
admhcd_reg_set(ahcd, ADMHCD_REG_RHDESCR, ADMHCD_NPS | ADMHCD_LPSC);
admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
- udev = usb_alloc_dev(NULL, &hcd->self, 0);
- if (!udev) {
- err = -ENOMEM;
- goto out_bus;
- }
-
- udev->speed = USB_SPEED_FULL;
- hcd->state = HC_STATE_RUNNING;
-
- //err = hcd_register_root(udev, hcd);
- //if (err != 0) {
- // usb_put_dev(udev);
- // goto out_dev;
- //}
+ err = usb_add_hcd(hcd, irq, IRQF_DISABLED);
+ if (err)
+ goto out_dev;
return 0;
out_dev:
- usb_put_dev(udev);
-out_bus:
- //usb_deregister_bus(&hcd->self);
+ usb_put_hcd(hcd);
out_irq:
free_irq(pdev->resource[1].start, hcd);
+out_unmap:
+ iounmap(addr_reg);
out_hcd:
usb_put_hcd(hcd);
out_mem:
- release_mem_region(pdev->resource[0].start,
- pdev->resource[0].end - pdev->resource[0].start);
+ release_mem_region(addr->start, 2);
out:
return err;
}
static int __init_or_module adm5120hcd_remove(struct platform_device *pdev)
{
- device_init_wakeup(&pdev->dev, 0);
+ struct usb_hcd *hcd = platform_get_drvdata(pdev);
+ struct admhcd *ahcd;
+ struct resource *res;
+
+ if (!hcd)
+ return 0;
+ ahcd = hcd_to_admhcd(hcd);
+ usb_remove_hcd(hcd);
+
+ usb_put_hcd(hcd);
+ return 0;
}
static struct platform_driver adm5120hcd_driver = {
{
if (usb_disabled())
return -ENODEV;
+ if (!adm5120_info.has_usb)
+ return -ENODEV;
return platform_driver_register(&adm5120hcd_driver);
}
projects / openwrt.git / blobdiff