usb serial: use new descriptor infrastructure.
Switch the usb serial drivers (serial, braille) over to the new descriptor infrastructure. Note that this removes the freely configurable vendor and product id properties. I think the only reason this was configurable is that the only difference between the serial and the braille device is the vendor+product id. Of course the serial and braille devices keep their different IDs, but they can't be overritten from the command line any more. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann
parent
0e4e9695d5
commit
f29783f72e
192
hw/usb-serial.c
192
hw/usb-serial.c
@ -11,6 +11,7 @@
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#include "qemu-common.h"
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#include "qemu-error.h"
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#include "usb.h"
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#include "usb-desc.h"
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#include "qemu-char.h"
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//#define DEBUG_Serial
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@ -91,8 +92,6 @@ do { printf("usb-serial: " fmt , ## __VA_ARGS__); } while (0)
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typedef struct {
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USBDevice dev;
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uint32_t vendorid;
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uint32_t productid;
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uint8_t recv_buf[RECV_BUF];
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uint16_t recv_ptr;
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uint16_t recv_used;
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@ -104,69 +103,78 @@ typedef struct {
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CharDriverState *cs;
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} USBSerialState;
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static const uint8_t qemu_serial_dev_descriptor[] = {
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0x12, /* u8 bLength; */
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0x01, /* u8 bDescriptorType; Device */
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0x00, 0x02, /* u16 bcdUSB; v2.0 */
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0x00, /* u8 bDeviceClass; */
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0x00, /* u8 bDeviceSubClass; */
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0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
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0x08, /* u8 bMaxPacketSize0; 8 Bytes */
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/* Vendor and product id are arbitrary. */
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0x03, 0x04, /* u16 idVendor; */
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0x00, 0xFF, /* u16 idProduct; */
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0x00, 0x04, /* u16 bcdDevice */
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0x01, /* u8 iManufacturer; */
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0x02, /* u8 iProduct; */
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0x03, /* u8 iSerialNumber; */
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0x01 /* u8 bNumConfigurations; */
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enum {
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STR_MANUFACTURER = 1,
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STR_PRODUCT_SERIAL,
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STR_PRODUCT_BRAILLE,
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STR_SERIALNUMBER,
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};
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static const uint8_t qemu_serial_config_descriptor[] = {
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static const USBDescStrings desc_strings = {
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[STR_MANUFACTURER] = "QEMU " QEMU_VERSION,
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[STR_PRODUCT_SERIAL] = "QEMU USB SERIAL",
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[STR_PRODUCT_BRAILLE] = "QEMU USB BRAILLE",
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[STR_SERIALNUMBER] = "1",
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};
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/* one configuration */
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0x09, /* u8 bLength; */
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0x02, /* u8 bDescriptorType; Configuration */
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0x20, 0x00, /* u16 wTotalLength; */
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0x01, /* u8 bNumInterfaces; (1) */
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0x01, /* u8 bConfigurationValue; */
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0x00, /* u8 iConfiguration; */
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0x80, /* u8 bmAttributes;
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Bit 7: must be set,
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6: Self-powered,
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5: Remote wakeup,
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4..0: resvd */
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100/2, /* u8 MaxPower; */
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static const USBDescIface desc_iface0 = {
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.bInterfaceNumber = 0,
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.bNumEndpoints = 2,
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.bInterfaceClass = 0xff,
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.bInterfaceSubClass = 0xff,
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.bInterfaceProtocol = 0xff,
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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_BULK,
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.wMaxPacketSize = 64,
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},{
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.bEndpointAddress = USB_DIR_OUT | 0x02,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = 64,
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},
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}
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};
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/* one interface */
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0x09, /* u8 if_bLength; */
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0x04, /* u8 if_bDescriptorType; Interface */
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0x00, /* u8 if_bInterfaceNumber; */
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0x00, /* u8 if_bAlternateSetting; */
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0x02, /* u8 if_bNumEndpoints; */
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0xff, /* u8 if_bInterfaceClass; Vendor Specific */
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0xff, /* u8 if_bInterfaceSubClass; Vendor Specific */
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0xff, /* u8 if_bInterfaceProtocol; Vendor Specific */
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0x02, /* u8 if_iInterface; */
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static const USBDescDevice desc_device = {
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.bcdUSB = 0x0200,
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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 = 0x80,
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.bMaxPower = 50,
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.ifs = &desc_iface0,
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},
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},
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};
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/* Bulk-In endpoint */
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0x07, /* u8 ep_bLength; */
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0x05, /* u8 ep_bDescriptorType; Endpoint */
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0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */
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0x02, /* u8 ep_bmAttributes; Bulk */
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0x40, 0x00, /* u16 ep_wMaxPacketSize; */
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0x00, /* u8 ep_bInterval; */
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static const USBDesc desc_serial = {
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.id = {
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.idVendor = 0x0403,
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.idProduct = 0x6001,
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.bcdDevice = 0x0400,
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.iManufacturer = STR_MANUFACTURER,
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.iProduct = STR_PRODUCT_SERIAL,
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.iSerialNumber = STR_SERIALNUMBER,
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},
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.full = &desc_device,
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.str = desc_strings,
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};
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/* Bulk-Out endpoint */
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0x07, /* u8 ep_bLength; */
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0x05, /* u8 ep_bDescriptorType; Endpoint */
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0x02, /* u8 ep_bEndpointAddress; OUT Endpoint 2 */
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0x02, /* u8 ep_bmAttributes; Bulk */
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0x40, 0x00, /* u16 ep_wMaxPacketSize; */
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0x00 /* u8 ep_bInterval; */
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static const USBDesc desc_braille = {
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.id = {
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.idVendor = 0x0403,
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.idProduct = 0xfe72,
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.bcdDevice = 0x0400,
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.iManufacturer = STR_MANUFACTURER,
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.iProduct = STR_PRODUCT_BRAILLE,
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.iSerialNumber = STR_SERIALNUMBER,
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},
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.full = &desc_device,
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.str = desc_strings,
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};
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static void usb_serial_reset(USBSerialState *s)
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@ -214,9 +222,15 @@ static int usb_serial_handle_control(USBDevice *dev, int request, int value,
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int index, int length, uint8_t *data)
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{
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USBSerialState *s = (USBSerialState *)dev;
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int ret = 0;
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int ret;
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//DPRINTF("got control %x, value %x\n",request, value);
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DPRINTF("got control %x, value %x\n",request, value);
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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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ret = 0;
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switch (request) {
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case DeviceRequest | USB_REQ_GET_STATUS:
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data[0] = (0 << USB_DEVICE_SELF_POWERED) |
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@ -244,52 +258,6 @@ static int usb_serial_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_serial_dev_descriptor,
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sizeof(qemu_serial_dev_descriptor));
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data[8] = s->vendorid & 0xff;
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data[9] = ((s->vendorid) >> 8) & 0xff;
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data[10] = s->productid & 0xff;
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data[11] = ((s->productid) >> 8) & 0xff;
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ret = sizeof(qemu_serial_dev_descriptor);
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break;
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case USB_DT_CONFIG:
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memcpy(data, qemu_serial_config_descriptor,
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sizeof(qemu_serial_config_descriptor));
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ret = sizeof(qemu_serial_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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/* vendor description */
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ret = set_usb_string(data, "QEMU " QEMU_VERSION);
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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 SERIAL");
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break;
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case 3:
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/* serial number */
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ret = set_usb_string(data, "1");
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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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@ -633,6 +601,7 @@ static struct USBDeviceInfo serial_info = {
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.product_desc = "QEMU USB Serial",
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.qdev.name = "usb-serial",
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.qdev.size = sizeof(USBSerialState),
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.usb_desc = &desc_serial,
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.init = usb_serial_initfn,
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.handle_packet = usb_generic_handle_packet,
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.handle_reset = usb_serial_handle_reset,
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@ -642,9 +611,7 @@ static struct USBDeviceInfo serial_info = {
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.usbdevice_name = "serial",
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.usbdevice_init = usb_serial_init,
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.qdev.props = (Property[]) {
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DEFINE_PROP_CHR("chardev", USBSerialState, cs),
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DEFINE_PROP_HEX32("vendorid", USBSerialState, vendorid, 0x0403),
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DEFINE_PROP_HEX32("productid", USBSerialState, productid, 0x6001),
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DEFINE_PROP_CHR("chardev", USBSerialState, cs),
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DEFINE_PROP_END_OF_LIST(),
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},
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};
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@ -653,6 +620,7 @@ static struct USBDeviceInfo braille_info = {
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.product_desc = "QEMU USB Braille",
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.qdev.name = "usb-braille",
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.qdev.size = sizeof(USBSerialState),
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.usb_desc = &desc_braille,
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.init = usb_serial_initfn,
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.handle_packet = usb_generic_handle_packet,
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.handle_reset = usb_serial_handle_reset,
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@ -662,9 +630,7 @@ static struct USBDeviceInfo braille_info = {
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.usbdevice_name = "braille",
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.usbdevice_init = usb_braille_init,
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.qdev.props = (Property[]) {
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DEFINE_PROP_CHR("chardev", USBSerialState, cs),
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DEFINE_PROP_HEX32("vendorid", USBSerialState, vendorid, 0x0403),
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DEFINE_PROP_HEX32("productid", USBSerialState, productid, 0xfe72),
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DEFINE_PROP_CHR("chardev", USBSerialState, cs),
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DEFINE_PROP_END_OF_LIST(),
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},
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};
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