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dm: usb: Add driver-model support to dwc2 

Add driver model support to this driver so it can be used with the new USB
stack.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-07-07 20:53:37 -06:00
parent cc3e3a9e0e
commit f58a41e001
1 changed files with 97 additions and 0 deletions
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97
drivers/usb/host/dwc2.c
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@ -6,6 +6,7 @@
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <usb.h>
#include <malloc.h>
@ -25,18 +26,25 @@
#define MAX_ENDPOINT 16
struct dwc2_priv {
#ifdef CONFIG_DM_USB
uint8_t aligned_buffer[DWC2_DATA_BUF_SIZE] __aligned(8);
uint8_t status_buffer[DWC2_STATUS_BUF_SIZE] __aligned(8);
#else
uint8_t *aligned_buffer;
uint8_t *status_buffer;
#endif
int bulk_data_toggle[MAX_DEVICE][MAX_ENDPOINT];
struct dwc2_core_regs *regs;
int root_hub_devnum;
};
#ifndef CONFIG_DM_USB
/* We need doubleword-aligned buffers for DMA transfers */
DEFINE_ALIGN_BUFFER(uint8_t, aligned_buffer_addr, DWC2_DATA_BUF_SIZE, 8);
DEFINE_ALIGN_BUFFER(uint8_t, status_buffer_addr, DWC2_STATUS_BUF_SIZE, 8);
static struct dwc2_priv local;
#endif
/*
* DWC2 IP interface
@ -979,6 +987,7 @@ static void dwc2_uninit_common(struct dwc2_core_regs *regs)
DWC2_HPRT0_PRTRST);
}
#ifndef CONFIG_DM_USB
int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
int len, struct devrequest *setup)
{
@ -1021,3 +1030,91 @@ int usb_lowlevel_stop(int index)
return 0;
}
#endif
#ifdef CONFIG_DM_USB
static int dwc2_submit_control_msg(struct udevice *dev, struct usb_device *udev,
unsigned long pipe, void *buffer, int length,
struct devrequest *setup)
{
struct dwc2_priv *priv = dev_get_priv(dev);
debug("%s: dev='%s', udev=%p, udev->dev='%s', portnr=%d\n", __func__,
dev->name, udev, udev->dev->name, udev->portnr);
return _submit_control_msg(priv, udev, pipe, buffer, length, setup);
}
static int dwc2_submit_bulk_msg(struct udevice *dev, struct usb_device *udev,
unsigned long pipe, void *buffer, int length)
{
struct dwc2_priv *priv = dev_get_priv(dev);
debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev);
return _submit_bulk_msg(priv, udev, pipe, buffer, length);
}
static int dwc2_submit_int_msg(struct udevice *dev, struct usb_device *udev,
unsigned long pipe, void *buffer, int length,
int interval)
{
struct dwc2_priv *priv = dev_get_priv(dev);
debug("%s: dev='%s', udev=%p\n", __func__, dev->name, udev);
return _submit_int_msg(priv, udev, pipe, buffer, length, interval);
}
static int dwc2_usb_ofdata_to_platdata(struct udevice *dev)
{
struct dwc2_priv *priv = dev_get_priv(dev);
fdt_addr_t addr;
addr = dev_get_addr(dev);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
priv->regs = (struct dwc2_core_regs *)addr;
return 0;
}
static int dwc2_usb_probe(struct udevice *dev)
{
struct dwc2_priv *priv = dev_get_priv(dev);
return dwc2_init_common(priv);
}
static int dwc2_usb_remove(struct udevice *dev)
{
struct dwc2_priv *priv = dev_get_priv(dev);
dwc2_uninit_common(priv->regs);
return 0;
}
struct dm_usb_ops dwc2_usb_ops = {
.control = dwc2_submit_control_msg,
.bulk = dwc2_submit_bulk_msg,
.interrupt = dwc2_submit_int_msg,
};
static const struct udevice_id dwc2_usb_ids[] = {
{ .compatible = "brcm,bcm2835-usb" },
{ }
};
U_BOOT_DRIVER(usb_dwc2) = {
.name = "dwc2_exynos",
.id = UCLASS_USB,
.of_match = dwc2_usb_ids,
.ofdata_to_platdata = dwc2_usb_ofdata_to_platdata,
.probe = dwc2_usb_probe,
.remove = dwc2_usb_remove,
.ops = &dwc2_usb_ops,
.priv_auto_alloc_size = sizeof(struct dwc2_priv),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};
#endif