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[Qemu-devel] Re: [PATCH] Create USB buses and devices based on USB versi
From: |
David S. Ahern |
Subject: |
[Qemu-devel] Re: [PATCH] Create USB buses and devices based on USB version. |
Date: |
Mon, 19 Jul 2010 06:49:04 -0600 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100621 Fedora/3.0.5-1.fc13 Lightning/1.0b2pre Thunderbird/3.0.5 |
On 07/14/10 11:56, David Ahern wrote:
> Create USB buses and devices based on USB version.
>
> Signed-off-by: David Ahern <address@hidden>
ping.
Relative to current code this addresses a number of FIXME's by assigning
USB devices to a specific bus. It is also groundwork for adding ehci.
David
> ---
> hw/usb-bus.c | 70
> ++++++++++++++++++++++++++++++++++++++++---------------
> hw/usb-msd.c | 2 +-
> hw/usb-net.c | 2 +-
> hw/usb-ohci.c | 2 +-
> hw/usb-serial.c | 4 +-
> hw/usb-uhci.c | 2 +-
> hw/usb.h | 7 +++--
> usb-bsd.c | 2 +-
> usb-linux.c | 2 +-
> 9 files changed, 63 insertions(+), 30 deletions(-)
>
> diff --git a/hw/usb-bus.c b/hw/usb-bus.c
> index b692503..f4849f8 100644
> --- a/hw/usb-bus.c
> +++ b/hw/usb-bus.c
> @@ -4,6 +4,12 @@
> #include "sysemu.h"
> #include "monitor.h"
>
> +enum {
> + USB_VERSION_NONE,
> + USB_VERSION_1_1,
> +};
> +
> +
> static void usb_bus_dev_print(Monitor *mon, DeviceState *qdev, int indent);
>
> static struct BusInfo usb_bus_info = {
> @@ -14,27 +20,46 @@ static struct BusInfo usb_bus_info = {
> static int next_usb_bus = 0;
> static QTAILQ_HEAD(, USBBus) busses = QTAILQ_HEAD_INITIALIZER(busses);
>
> -void usb_bus_new(USBBus *bus, DeviceState *host)
> +static void usb_bus_new(USBBus *bus, int version, DeviceState *host)
> {
> qbus_create_inplace(&bus->qbus, &usb_bus_info, host, NULL);
> bus->busnr = next_usb_bus++;
> bus->qbus.allow_hotplug = 1; /* Yes, we can */
> + bus->version = version;
> QTAILQ_INIT(&bus->free);
> QTAILQ_INIT(&bus->used);
> QTAILQ_INSERT_TAIL(&busses, bus, next);
> }
>
> -USBBus *usb_bus_find(int busnr)
> +void usb_bus_new_v1(USBBus *bus, DeviceState *host)
> +{
> + usb_bus_new(bus, USB_VERSION_1_1, host);
> +}
> +
> +static USBBus *usb_bus_find(int busnr)
> +{
> + USBBus *bus;
> +
> + QTAILQ_FOREACH(bus, &busses, next) {
> + if (bus->busnr == busnr) {
> + break;
> + }
> + }
> +
> + return bus;
> +}
> +
> +/* device creation should be using this one */
> +USBBus *usb_bus_find_version(int version)
> {
> USBBus *bus;
>
> - if (-1 == busnr)
> - return QTAILQ_FIRST(&busses);
> QTAILQ_FOREACH(bus, &busses, next) {
> - if (bus->busnr == busnr)
> - return bus;
> + if (bus->version == version) {
> + break;
> + }
> }
> - return NULL;
> + return bus;
> }
>
> static int usb_qdev_init(DeviceState *qdev, DeviceInfo *base)
> @@ -80,20 +105,15 @@ void usb_qdev_register_many(USBDeviceInfo *info)
> }
> }
>
> -USBDevice *usb_create(USBBus *bus, const char *name)
> +static USBDevice *usb_create(USBBus *bus, const char *name)
> {
> DeviceState *dev;
>
> -#if 1
> - /* temporary stopgap until all usb is properly qdev-ified */
> if (!bus) {
> - bus = usb_bus_find(-1);
> - if (!bus)
> - return NULL;
> - fprintf(stderr, "%s: no bus specified, using \"%s\" for \"%s\"\n",
> - __FUNCTION__, bus->qbus.name, name);
> + fprintf(stderr, "%s: no bus specified for \"%s\"\n",
> + __FUNCTION__, name);
> + return NULL;
> }
> -#endif
>
> dev = qdev_create(&bus->qbus, name);
> return DO_UPCAST(USBDevice, qdev, dev);
> @@ -101,7 +121,13 @@ USBDevice *usb_create(USBBus *bus, const char *name)
>
> USBDevice *usb_create_simple(USBBus *bus, const char *name)
> {
> - USBDevice *dev = usb_create(bus, name);
> + USBDevice *dev;
> +
> + /* if bus not given default to USB 1.1 */
> + if (!bus)
> + bus = usb_bus_find_version(USB_VERSION_1_1);
> +
> + dev = usb_create(bus, name);
> if (!dev) {
> hw_error("Failed to create USB device '%s'\n", name);
> }
> @@ -109,6 +135,13 @@ USBDevice *usb_create_simple(USBBus *bus, const char
> *name)
> return dev;
> }
>
> +/* create USB device attached to USB 1.1 controller */
> +USBDevice *usb_create_v1(const char *name)
> +{
> + USBBus *bus = usb_bus_find_version(USB_VERSION_1_1);
> + return usb_create(bus, name);
> +}
> +
> void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
> usb_attachfn attach)
> {
> @@ -260,7 +293,6 @@ void usb_info(Monitor *mon)
> /* handle legacy -usbdevice cmd line option */
> USBDevice *usbdevice_create(const char *cmdline)
> {
> - USBBus *bus = usb_bus_find(-1 /* any */);
> DeviceInfo *info;
> USBDeviceInfo *usb;
> char driver[32];
> @@ -302,7 +334,7 @@ USBDevice *usbdevice_create(const char *cmdline)
> error_report("usbdevice %s accepts no params", driver);
> return NULL;
> }
> - return usb_create_simple(bus, usb->qdev.name);
> + return usb_create_simple(NULL, usb->qdev.name);
> }
> return usb->usbdevice_init(params);
> }
> diff --git a/hw/usb-msd.c b/hw/usb-msd.c
> index 65e9624..d8b68f7 100644
> --- a/hw/usb-msd.c
> +++ b/hw/usb-msd.c
> @@ -606,7 +606,7 @@ static USBDevice *usb_msd_init(const char *filename)
> }
>
> /* create guest device */
> - dev = usb_create(NULL /* FIXME */, "usb-storage");
> + dev = usb_create_v1("usb-storage");
> if (!dev) {
> return NULL;
> }
> diff --git a/hw/usb-net.c b/hw/usb-net.c
> index a43bd17..b8936c5 100644
> --- a/hw/usb-net.c
> +++ b/hw/usb-net.c
> @@ -1484,7 +1484,7 @@ static USBDevice *usb_net_init(const char *cmdline)
> return NULL;
> }
>
> - dev = usb_create(NULL /* FIXME */, "usb-net");
> + dev = usb_create_v1("usb-net");
> if (!dev) {
> return NULL;
> }
> diff --git a/hw/usb-ohci.c b/hw/usb-ohci.c
> index c60fd8d..d38befc 100644
> --- a/hw/usb-ohci.c
> +++ b/hw/usb-ohci.c
> @@ -1702,7 +1702,7 @@ static void usb_ohci_init(OHCIState *ohci, DeviceState
> *dev,
>
> ohci->name = dev->info->name;
>
> - usb_bus_new(&ohci->bus, dev);
> + usb_bus_new_v1(&ohci->bus, dev);
> ohci->num_ports = num_ports;
> for (i = 0; i < num_ports; i++) {
> usb_register_port(&ohci->bus, &ohci->rhport[i].port, ohci, i,
> ohci_attach);
> diff --git a/hw/usb-serial.c b/hw/usb-serial.c
> index c19580f..f1c47b9 100644
> --- a/hw/usb-serial.c
> +++ b/hw/usb-serial.c
> @@ -599,7 +599,7 @@ static USBDevice *usb_serial_init(const char *filename)
> if (!cdrv)
> return NULL;
>
> - dev = usb_create(NULL /* FIXME */, "usb-serial");
> + dev = usb_create_v1("usb-serial");
> if (!dev) {
> return NULL;
> }
> @@ -622,7 +622,7 @@ static USBDevice *usb_braille_init(const char *unused)
> if (!cdrv)
> return NULL;
>
> - dev = usb_create(NULL /* FIXME */, "usb-braille");
> + dev = usb_create_v1("usb-braille");
> qdev_prop_set_chr(&dev->qdev, "chardev", cdrv);
> qdev_init_nofail(&dev->qdev);
>
> diff --git a/hw/usb-uhci.c b/hw/usb-uhci.c
> index 1d83400..0528757 100644
> --- a/hw/usb-uhci.c
> +++ b/hw/usb-uhci.c
> @@ -1113,7 +1113,7 @@ static int usb_uhci_common_initfn(UHCIState *s)
> pci_conf[PCI_INTERRUPT_PIN] = 4; // interrupt pin 3
> pci_conf[0x60] = 0x10; // release number
>
> - usb_bus_new(&s->bus, &s->dev.qdev);
> + usb_bus_new_v1(&s->bus, &s->dev.qdev);
> for(i = 0; i < NB_PORTS; i++) {
> usb_register_port(&s->bus, &s->ports[i].port, s, i, uhci_attach);
> }
> diff --git a/hw/usb.h b/hw/usb.h
> index 00d2802..5c519dd 100644
> --- a/hw/usb.h
> +++ b/hw/usb.h
> @@ -299,16 +299,17 @@ struct USBBus {
> int busnr;
> int nfree;
> int nused;
> + int version;
> QTAILQ_HEAD(, USBPort) free;
> QTAILQ_HEAD(, USBPort) used;
> QTAILQ_ENTRY(USBBus) next;
> };
>
> -void usb_bus_new(USBBus *bus, DeviceState *host);
> -USBBus *usb_bus_find(int busnr);
> +void usb_bus_new_v1(USBBus *bus, DeviceState *host);
> +USBBus *usb_bus_find_version(int version);
> void usb_qdev_register(USBDeviceInfo *info);
> void usb_qdev_register_many(USBDeviceInfo *info);
> -USBDevice *usb_create(USBBus *bus, const char *name);
> +USBDevice *usb_create_v1(const char *name);
> USBDevice *usb_create_simple(USBBus *bus, const char *name);
> USBDevice *usbdevice_create(const char *cmdline);
> void usb_register_port(USBBus *bus, USBPort *port, void *opaque, int index,
> diff --git a/usb-bsd.c b/usb-bsd.c
> index 48567a3..b2c3777 100644
> --- a/usb-bsd.c
> +++ b/usb-bsd.c
> @@ -361,7 +361,7 @@ USBDevice *usb_host_device_open(const char *devname)
> goto fail;
> }
>
> - d = usb_create(NULL /* FIXME */, "usb-host");
> + d = usb_create_v1("usb-host");
> dev = DO_UPCAST(USBHostDevice, dev, d);
>
> if (dev_info.udi_speed == 1)
> diff --git a/usb-linux.c b/usb-linux.c
> index c3c38ec..c5e9cfe 100644
> --- a/usb-linux.c
> +++ b/usb-linux.c
> @@ -1053,7 +1053,7 @@ USBDevice *usb_host_device_open(const char *devname)
> USBDevice *dev;
> char *p;
>
> - dev = usb_create(NULL /* FIXME */, "usb-host");
> + dev = usb_create_v1("usb-host");
>
> if (strstr(devname, "auto:")) {
> if (parse_filter(devname, &filter) < 0) {