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authorSimon Glass <sjg@chromium.org>2015-07-07 20:53:37 -0600
committerSimon Glass <sjg@chromium.org>2015-08-06 07:31:37 -0600
commitf58a41e001c5ad5b9ae7e49b37b031f7880b5638 (patch)
treed7cdd4cb17f6ae601b777ea2790c3ca07f04226a /drivers
parentcc3e3a9e0eab3bc15be1766222fc2739f375252a (diff)
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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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/host/dwc2.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
index 72ca682..702ef63 100644
--- a/drivers/usb/host/dwc2.c
+++ b/drivers/usb/host/dwc2.c
@@ -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