*
* Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
*
- * Based on the ADMtek 2.4 driver
+ * Based on the ADMtek 2.4 driver
* (C) Copyright 2003 Junius Chen <juniusc@admtek.com.tw>
* Which again was based on the ohci and uhci drivers.
*/
#include <linux/usb.h>
#include <linux/platform_device.h>
+#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
+#define PFX "adm5120-hcd: "
+
#define ADMHCD_REG_CONTROL 0x00
#define ADMHCD_REG_INTSTATUS 0x04
#define ADMHCD_REG_INTENABLE 0x08
struct admhcd {
spinlock_t lock;
-
+
void __iomem *addr_reg;
void __iomem *data_reg;
/* Root hub registers */
u32 base;
u32 dma_en;
unsigned long flags;
-
+
};
static inline struct admhcd *hcd_to_admhcd(struct usb_hcd *hcd)
if (ed->cur == NULL) {
ed->cur = tdn;
ed->head = tdn;
- ed->tail = tdn;
+ ed->tail = tdn;
td = tdn;
} else {
/* Supply back the old tail and link in new td as tail */
ahcd->dma_en |= ADMHCD_DMA_EN;
}
-static irqreturn_t adm5120hcd_irq(int irq, void *ptr, struct pt_regs *regs)
+static irqreturn_t adm5120hcd_irq(struct usb_hcd *hcd)
{
- struct usb_hcd *hcd = (struct usb_hcd *)ptr;
struct admhcd *ahcd = hcd_to_admhcd(hcd);
u32 intstatus;
}
if (intstatus & ADMHCD_INT_TD) {
struct admhcd_ed *ed, *head;
-
+
admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS, ADMHCD_INT_TD);
head = (struct admhcd_ed *)admhcd_reg_get(ahcd, ADMHCD_REG_HOSTHEAD);
if (ed->urb && !(ed->cur->control & ADMHCD_TD_OWN)) {
struct admhcd_td *td;
int error;
-
+
td = ed->cur;
error = (td->control & ADMHCD_TD_ERRMASK) >>
ADMHCD_TD_ERRSHIFT;
}
static int admhcd_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep,
- struct urb *urb, int mem_flags)
+ struct urb *urb, gfp_t mem_flags)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
struct admhcd_ed *ed;
td = admhcd_td_fill(ADMHCD_TD_SETUP | ADMHCD_TD_DATA0,
td, (dma_addr_t)urb->setup_packet, 8);
while (data_len > 0) {
- td = admhcd_td_fill(ADMHCD_TD_DATA1
+ td = admhcd_td_fill(ADMHCD_TD_DATA1
| ADMHCD_TD_R |
(usb_pipeout(pipe) ?
ADMHCD_TD_OUT : ADMHCD_TD_IN), td,
i = 0;
while(data_len > 4096) {
td = admhcd_td_fill((usb_pipeout(pipe) ?
- ADMHCD_TD_OUT :
+ ADMHCD_TD_OUT :
ADMHCD_TD_IN | ADMHCD_TD_R) |
(i ? ADMHCD_TD_TOGGLE : toggle), td,
data, 4096);
data_len -= 4096;
i++;
}
- td = admhcd_td_fill((usb_pipeout(pipe) ?
+ td = admhcd_td_fill((usb_pipeout(pipe) ?
ADMHCD_TD_OUT : ADMHCD_TD_IN) |
(i ? ADMHCD_TD_TOGGLE : toggle), td, data, data_len);
i++;
case USB_PORT_FEAT_RESET:
if (admhcd_reg_get(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4)
& ADMHCD_CCS) {
- admhcd_reg_set(ahcd,
+ admhcd_reg_set(ahcd,
ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_PRS | ADMHCD_CSC);
mdelay(50);
.description = hcd_name,
.product_desc = "ADM5120 HCD",
.hcd_priv_size = sizeof(struct admhcd),
+ .irq = adm5120hcd_irq,
.flags = HCD_USB11,
.urb_enqueue = admhcd_urb_enqueue,
.urb_dequeue = admhcd_urb_dequeue,
static int __init adm5120hcd_probe(struct platform_device *pdev)
{
- struct usb_hcd *hcd;
- struct admhcd *ahcd;
- struct usb_device *udev;
+ struct usb_hcd *hcd;
+ struct admhcd *ahcd;
struct resource *addr, *data;
void __iomem *addr_reg;
- void __iomem *data_reg;
- int irq, err = 0;
+ void __iomem *data_reg;
+
+ int err = 0, irq;
if (pdev->num_resources < 3) {
err = -ENODEV;
goto out;
- }
+ }
+
+ if (pdev->dev.dma_mask) {
+ printk(KERN_DEBUG "no we won't dma\n");
+ return -EINVAL;
+ }
- data = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- addr = platform_get_resource(pdev, IORESOURCE_MEM, 1);
irq = platform_get_irq(pdev, 0);
+ data = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ addr = platform_get_resource(pdev, IORESOURCE_MEM, 1);
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;
- }
+ err = -ENODEV;
+ 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_unmap;
- }
- data_reg = ioremap(data->start, resource_len(data));
- if (data_reg == NULL) {
- err = -ENOMEM;
- goto out_mem;
- }
-
+ 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_unmap;
+ }
+
+ data_reg = ioremap(data->start, resource_len(data));
+ if (data_reg == NULL) {
+ err = -ENOMEM;
+ goto out_mem;
+ }
hcd = usb_create_hcd(&adm5120_hc_driver, &pdev->dev, pdev->dev.bus_id);
- if (!hcd)
- goto out_mem;
+ if (!hcd)
+ goto out_mem;
+ hcd->rsrc_start = addr->start;
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);
+ ahcd->data_reg = data_reg;
+ ahcd->addr_reg = addr_reg;
+
+ hcd->product_desc = "ADM5120 HCD";
+
/* Initialise the HCD registers */
admhcd_reg_set(ahcd, ADMHCD_REG_INTENABLE, 0);
mdelay(10);
+
admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_SW_RESET);
+
while (admhcd_reg_get(ahcd, ADMHCD_REG_CONTROL) & ADMHCD_SW_RESET)
mdelay(1);
out_dev:
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(addr->start, 2);
+ release_mem_region(pdev->resource[0].start, pdev->resource[0].end - pdev->resource[0].start);
out:
return err;
}
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct admhcd *ahcd;
- struct resource *res;
if (!hcd)
return 0;
.probe = adm5120hcd_probe,
.remove = adm5120hcd_remove,
.driver = {
- .name = "adm5120-hcd",
+ .name = "adm5120-usbc",
.owner = THIS_MODULE,
},
};
static int __init adm5120hcd_init(void)
{
- if (usb_disabled())
+ int ret;
+
+ if (usb_disabled()) {
+ printk(KERN_DEBUG PFX "USB support is disabled\n");
return -ENODEV;
- if (!adm5120_info.has_usb)
+ }
+
+ if (mips_machgroup != MACH_GROUP_ADM5120) {
+ printk(KERN_DEBUG PFX "unsupported machine group\n");
return -ENODEV;
+ }
- return platform_driver_register(&adm5120hcd_driver);
+ ret = platform_driver_register(&adm5120hcd_driver);
+ if (ret == 0)
+ printk(KERN_INFO PFX "registered\n");
+
+ return ret;
}
static void __exit adm5120hcd_exit(void)
projects / openwrt.git / blobdiff