diff options
| -rw-r--r-- | drivers/usb/host/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/host/usb-sandbox.c | 117 |
2 files changed, 118 insertions, 0 deletions
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 9419295d0d..7658f873e0 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -7,6 +7,7 @@ ifdef CONFIG_DM_USB obj-$(CONFIG_CMD_USB) += usb-uclass.o +obj-$(CONFIG_SANDBOX) += usb-sandbox.o endif # ohci diff --git a/drivers/usb/host/usb-sandbox.c b/drivers/usb/host/usb-sandbox.c new file mode 100644 index 0000000000..c5f9822040 --- /dev/null +++ b/drivers/usb/host/usb-sandbox.c @@ -0,0 +1,117 @@ +/* + * (C) Copyright 2015 Google, Inc + * Written by Simon Glass <sjg@chromium.org> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <usb.h> +#include <dm/root.h> + +DECLARE_GLOBAL_DATA_PTR; + +static void usbmon_trace(struct udevice *bus, ulong pipe, + struct devrequest *setup, struct udevice *emul) +{ + static const char types[] = "ZICB"; + int type; + + type = (pipe & USB_PIPE_TYPE_MASK) >> USB_PIPE_TYPE_SHIFT; + debug("0 0 S %c%c:%d:%03ld:%ld", types[type], + pipe & USB_DIR_IN ? 'i' : 'o', + bus->seq, + (pipe & USB_PIPE_DEV_MASK) >> USB_PIPE_DEV_SHIFT, + (pipe & USB_PIPE_EP_MASK) >> USB_PIPE_EP_SHIFT); + if (setup) { + debug(" s %02x %02x %04x %04x %04x", setup->requesttype, + setup->request, setup->value, setup->index, + setup->length); + } + debug(" %s", emul ? emul->name : "(no emul found)"); + + debug("\n"); +} + +static int sandbox_submit_control(struct udevice *bus, + struct usb_device *udev, + unsigned long pipe, + void *buffer, int length, + struct devrequest *setup) +{ + struct udevice *emul; + int ret; + + /* Just use child of dev as emulator? */ + debug("%s: bus=%s\n", __func__, bus->name); + ret = usb_emul_find(bus, pipe, &emul); + usbmon_trace(bus, pipe, setup, emul); + if (ret) + return ret; + ret = usb_emul_control(emul, udev, pipe, buffer, length, setup); + if (ret < 0) { + debug("ret=%d\n", ret); + udev->status = ret; + udev->act_len = 0; + } else { + udev->status = 0; + udev->act_len = ret; + } + + return ret; +} + +static int sandbox_submit_bulk(struct udevice *bus, struct usb_device *udev, + unsigned long pipe, void *buffer, int length) +{ + struct udevice *emul; + int ret; + + /* Just use child of dev as emulator? */ + debug("%s: bus=%s\n", __func__, bus->name); + ret = usb_emul_find(bus, pipe, &emul); + usbmon_trace(bus, pipe, NULL, emul); + if (ret) + return ret; + ret = usb_emul_bulk(emul, udev, pipe, buffer, length); + if (ret < 0) { + debug("ret=%d\n", ret); + udev->status = ret; + udev->act_len = 0; + } else { + udev->status = 0; + udev->act_len = ret; + } + + return ret; +} + +static int sandbox_alloc_device(struct udevice *dev, struct usb_device *udev) +{ + return 0; +} + +static int sandbox_usb_probe(struct udevice *dev) +{ + return 0; +} + +static const struct dm_usb_ops sandbox_usb_ops = { + .control = sandbox_submit_control, + .bulk = sandbox_submit_bulk, + .alloc_device = sandbox_alloc_device, +}; + +static const struct udevice_id sandbox_usb_ids[] = { + { .compatible = "sandbox,usb" }, + { } +}; + +U_BOOT_DRIVER(usb_sandbox) = { + .name = "usb_sandbox", + .id = UCLASS_USB, + .of_match = sandbox_usb_ids, + .probe = sandbox_usb_probe, + .ops = &sandbox_usb_ops, +}; |