mirror of
https://github.com/xemu-project/xemu.git
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usb hub: use new descriptor infrastructure.
Switch the usb hub driver over to the new descriptor infrastructure. It also removes the nr_ports variable and MAX_PORTS define and introduces a NUM_PORTS define instead. The numver of ports was (and still is) fixed at 8 anyway. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann
parent
4696425cd0
commit
062651c7e7
141
hw/usb-hub.c
141
hw/usb-hub.c
@ -23,10 +23,11 @@
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*/
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#include "qemu-common.h"
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#include "usb.h"
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#include "usb-desc.h"
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//#define DEBUG
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#define MAX_PORTS 8
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#define NUM_PORTS 8
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typedef struct USBHubPort {
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USBPort port;
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@ -36,8 +37,7 @@ typedef struct USBHubPort {
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typedef struct USBHubState {
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USBDevice dev;
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int nb_ports;
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USBHubPort ports[MAX_PORTS];
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USBHubPort ports[NUM_PORTS];
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} USBHubState;
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#define ClearHubFeature (0x2000 | USB_REQ_CLEAR_FEATURE)
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@ -83,6 +83,60 @@ typedef struct USBHubState {
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/* same as Linux kernel root hubs */
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enum {
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STR_MANUFACTURER = 1,
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STR_PRODUCT,
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STR_SERIALNUMBER,
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};
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static const USBDescStrings desc_strings = {
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[STR_MANUFACTURER] = "QEMU " QEMU_VERSION,
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[STR_PRODUCT] = "QEMU USB Hub",
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[STR_SERIALNUMBER] = "314159",
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};
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static const USBDescIface desc_iface_hub = {
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.bInterfaceNumber = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_CLASS_HUB,
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.eps = (USBDescEndpoint[]) {
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{
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.bEndpointAddress = USB_DIR_IN | 0x01,
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.bmAttributes = USB_ENDPOINT_XFER_INT,
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.wMaxPacketSize = 1 + (NUM_PORTS + 7) / 8,
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.bInterval = 0xff,
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},
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}
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};
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static const USBDescDevice desc_device_hub = {
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.bcdUSB = 0x0110,
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.bDeviceClass = USB_CLASS_HUB,
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.bMaxPacketSize0 = 8,
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.bNumConfigurations = 1,
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.confs = (USBDescConfig[]) {
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{
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.bNumInterfaces = 1,
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.bConfigurationValue = 1,
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.bmAttributes = 0xe0,
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.ifs = &desc_iface_hub,
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},
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},
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};
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static const USBDesc desc_hub = {
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.id = {
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.idVendor = 0,
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.idProduct = 0,
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.bcdDevice = 0x0101,
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.iManufacturer = STR_MANUFACTURER,
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.iProduct = STR_PRODUCT,
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.iSerialNumber = STR_SERIALNUMBER,
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},
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.full = &desc_device_hub,
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.str = desc_strings,
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};
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static const uint8_t qemu_hub_dev_descriptor[] = {
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0x12, /* u8 bLength; */
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0x01, /* u8 bDescriptorType; Device */
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@ -209,6 +263,11 @@ static int usb_hub_handle_control(USBDevice *dev, int request, int value,
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USBHubState *s = (USBHubState *)dev;
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int ret;
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ret = usb_desc_handle_control(dev, request, value, index, length, data);
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if (ret >= 0) {
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return ret;
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}
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switch(request) {
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case DeviceRequest | USB_REQ_GET_STATUS:
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data[0] = (1 << USB_DEVICE_SELF_POWERED) |
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@ -242,53 +301,6 @@ static int usb_hub_handle_control(USBDevice *dev, int request, int value,
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dev->addr = value;
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ret = 0;
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break;
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case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
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switch(value >> 8) {
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case USB_DT_DEVICE:
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memcpy(data, qemu_hub_dev_descriptor,
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sizeof(qemu_hub_dev_descriptor));
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ret = sizeof(qemu_hub_dev_descriptor);
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break;
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case USB_DT_CONFIG:
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memcpy(data, qemu_hub_config_descriptor,
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sizeof(qemu_hub_config_descriptor));
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/* status change endpoint size based on number
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* of ports */
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data[22] = (s->nb_ports + 1 + 7) / 8;
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ret = sizeof(qemu_hub_config_descriptor);
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break;
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case USB_DT_STRING:
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switch(value & 0xff) {
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case 0:
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/* language ids */
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data[0] = 4;
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data[1] = 3;
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data[2] = 0x09;
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data[3] = 0x04;
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ret = 4;
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break;
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case 1:
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/* serial number */
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ret = set_usb_string(data, "314159");
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break;
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case 2:
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/* product description */
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ret = set_usb_string(data, "QEMU USB Hub");
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break;
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case 3:
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/* vendor description */
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ret = set_usb_string(data, "QEMU " QEMU_VERSION);
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break;
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default:
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goto fail;
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}
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break;
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default:
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goto fail;
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}
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break;
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case DeviceRequest | USB_REQ_GET_CONFIGURATION:
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data[0] = 1;
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ret = 1;
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@ -315,8 +327,9 @@ static int usb_hub_handle_control(USBDevice *dev, int request, int value,
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{
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unsigned int n = index - 1;
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USBHubPort *port;
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if (n >= s->nb_ports)
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if (n >= NUM_PORTS) {
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goto fail;
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}
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port = &s->ports[n];
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data[0] = port->wPortStatus;
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data[1] = port->wPortStatus >> 8;
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@ -338,8 +351,9 @@ static int usb_hub_handle_control(USBDevice *dev, int request, int value,
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unsigned int n = index - 1;
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USBHubPort *port;
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USBDevice *dev;
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if (n >= s->nb_ports)
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if (n >= NUM_PORTS) {
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goto fail;
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}
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port = &s->ports[n];
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dev = port->port.dev;
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switch(value) {
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@ -367,8 +381,9 @@ static int usb_hub_handle_control(USBDevice *dev, int request, int value,
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unsigned int n = index - 1;
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USBHubPort *port;
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if (n >= s->nb_ports)
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if (n >= NUM_PORTS) {
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goto fail;
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}
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port = &s->ports[n];
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switch(value) {
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case PORT_ENABLE:
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@ -403,17 +418,17 @@ static int usb_hub_handle_control(USBDevice *dev, int request, int value,
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unsigned int n, limit, var_hub_size = 0;
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memcpy(data, qemu_hub_hub_descriptor,
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sizeof(qemu_hub_hub_descriptor));
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data[2] = s->nb_ports;
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data[2] = NUM_PORTS;
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/* fill DeviceRemovable bits */
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limit = ((s->nb_ports + 1 + 7) / 8) + 7;
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limit = ((NUM_PORTS + 1 + 7) / 8) + 7;
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for (n = 7; n < limit; n++) {
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data[n] = 0x00;
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var_hub_size++;
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}
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/* fill PortPwrCtrlMask bits */
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limit = limit + ((s->nb_ports + 7) / 8);
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limit = limit + ((NUM_PORTS + 7) / 8);
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for (;n < limit; n++) {
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data[n] = 0xff;
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var_hub_size++;
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@ -442,14 +457,14 @@ static int usb_hub_handle_data(USBDevice *dev, USBPacket *p)
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USBHubPort *port;
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unsigned int status;
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int i, n;
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n = (s->nb_ports + 1 + 7) / 8;
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n = (NUM_PORTS + 1 + 7) / 8;
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if (p->len == 1) { /* FreeBSD workaround */
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n = 1;
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} else if (n > p->len) {
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return USB_RET_BABBLE;
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}
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status = 0;
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for(i = 0; i < s->nb_ports; i++) {
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for(i = 0; i < NUM_PORTS; i++) {
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port = &s->ports[i];
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if (port->wPortChange)
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status |= (1 << (i + 1));
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@ -481,7 +496,7 @@ static int usb_hub_broadcast_packet(USBHubState *s, USBPacket *p)
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USBDevice *dev;
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int i, ret;
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for(i = 0; i < s->nb_ports; i++) {
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for(i = 0; i < NUM_PORTS; i++) {
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port = &s->ports[i];
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dev = port->port.dev;
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if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) {
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@ -518,7 +533,7 @@ static void usb_hub_handle_destroy(USBDevice *dev)
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USBHubState *s = (USBHubState *)dev;
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int i;
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for (i = 0; i < s->nb_ports; i++) {
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for (i = 0; i < NUM_PORTS; i++) {
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usb_unregister_port(usb_bus_from_device(dev),
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&s->ports[i].port);
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}
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@ -530,9 +545,8 @@ static int usb_hub_initfn(USBDevice *dev)
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USBHubPort *port;
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int i;
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s->dev.speed = USB_SPEED_FULL,
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s->nb_ports = MAX_PORTS; /* FIXME: make configurable */
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for (i = 0; i < s->nb_ports; i++) {
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s->dev.speed = USB_SPEED_FULL;
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for (i = 0; i < NUM_PORTS; i++) {
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port = &s->ports[i];
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usb_register_port(usb_bus_from_device(dev),
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&port->port, s, i, &s->dev, usb_hub_attach);
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@ -547,6 +561,7 @@ static struct USBDeviceInfo hub_info = {
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.qdev.name = "usb-hub",
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.qdev.fw_name = "hub",
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.qdev.size = sizeof(USBHubState),
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.usb_desc = &desc_hub,
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.init = usb_hub_initfn,
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.handle_packet = usb_hub_handle_packet,
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.handle_reset = usb_hub_handle_reset,
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