haraldwolff/qemu-patch-raspberry4
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usb serial: use new descriptor infrastructure.

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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 2010-11-17 11:05:32 +01:00
parent 0e4e9695d5
commit f29783f72e
1 changed files with 79 additions and 113 deletions
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192
hw/usb-serial.c
View file

@ -11,6 +11,7 @@
#include "qemu-common.h" #include "qemu-common.h"
#include "qemu-error.h" #include "qemu-error.h"
#include "usb.h" #include "usb.h"
#include "usb-desc.h"
#include "qemu-char.h" #include "qemu-char.h"
//#define DEBUG_Serial //#define DEBUG_Serial
@ -91,8 +92,6 @@ do { printf("usb-serial: " fmt , ## __VA_ARGS__); } while (0)
typedef struct { typedef struct {
USBDevice dev; USBDevice dev;
uint32_t vendorid;
uint32_t productid;
uint8_t recv_buf[RECV_BUF]; uint8_t recv_buf[RECV_BUF];
uint16_t recv_ptr; uint16_t recv_ptr;
uint16_t recv_used; uint16_t recv_used;
@ -104,69 +103,78 @@ typedef struct {
CharDriverState *cs; CharDriverState *cs;
} USBSerialState; } USBSerialState;
static const uint8_t qemu_serial_dev_descriptor[] = { enum {
0x12, /* u8 bLength; */ STR_MANUFACTURER = 1,
0x01, /* u8 bDescriptorType; Device */ STR_PRODUCT_SERIAL,
0x00, 0x02, /* u16 bcdUSB; v2.0 */ STR_PRODUCT_BRAILLE,
STR_SERIALNUMBER,
0x00, /* u8 bDeviceClass; */
0x00, /* u8 bDeviceSubClass; */
0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */
0x08, /* u8 bMaxPacketSize0; 8 Bytes */
/* Vendor and product id are arbitrary. */
0x03, 0x04, /* u16 idVendor; */
0x00, 0xFF, /* u16 idProduct; */
0x00, 0x04, /* u16 bcdDevice */
0x01, /* u8 iManufacturer; */
0x02, /* u8 iProduct; */
0x03, /* u8 iSerialNumber; */
0x01 /* u8 bNumConfigurations; */
}; };
static const uint8_t qemu_serial_config_descriptor[] = { static const USBDescStrings desc_strings = {
[STR_MANUFACTURER] = "QEMU " QEMU_VERSION,
[STR_PRODUCT_SERIAL] = "QEMU USB SERIAL",
[STR_PRODUCT_BRAILLE] = "QEMU USB BRAILLE",
[STR_SERIALNUMBER] = "1",
};
/* one configuration */ static const USBDescIface desc_iface0 = {
0x09, /* u8 bLength; */ .bInterfaceNumber = 0,
0x02, /* u8 bDescriptorType; Configuration */ .bNumEndpoints = 2,
0x20, 0x00, /* u16 wTotalLength; */ .bInterfaceClass = 0xff,
0x01, /* u8 bNumInterfaces; (1) */ .bInterfaceSubClass = 0xff,
0x01, /* u8 bConfigurationValue; */ .bInterfaceProtocol = 0xff,
0x00, /* u8 iConfiguration; */ .eps = (USBDescEndpoint[]) {
0x80, /* u8 bmAttributes; {
Bit 7: must be set, .bEndpointAddress = USB_DIR_IN | 0x01,
6: Self-powered, .bmAttributes = USB_ENDPOINT_XFER_BULK,
5: Remote wakeup, .wMaxPacketSize = 64,
4..0: resvd */ },{
100/2, /* u8 MaxPower; */ .bEndpointAddress = USB_DIR_OUT | 0x02,
.bmAttributes = USB_ENDPOINT_XFER_BULK,
.wMaxPacketSize = 64,
},
}
};
/* one interface */ static const USBDescDevice desc_device = {
0x09, /* u8 if_bLength; */ .bcdUSB = 0x0200,
0x04, /* u8 if_bDescriptorType; Interface */ .bMaxPacketSize0 = 8,
0x00, /* u8 if_bInterfaceNumber; */ .bNumConfigurations = 1,
0x00, /* u8 if_bAlternateSetting; */ .confs = (USBDescConfig[]) {
0x02, /* u8 if_bNumEndpoints; */ {
0xff, /* u8 if_bInterfaceClass; Vendor Specific */ .bNumInterfaces = 1,
0xff, /* u8 if_bInterfaceSubClass; Vendor Specific */ .bConfigurationValue = 1,
0xff, /* u8 if_bInterfaceProtocol; Vendor Specific */ .bmAttributes = 0x80,
0x02, /* u8 if_iInterface; */ .bMaxPower = 50,
.ifs = &desc_iface0,
},
},
};
/* Bulk-In endpoint */ static const USBDesc desc_serial = {
0x07, /* u8 ep_bLength; */ .id = {
0x05, /* u8 ep_bDescriptorType; Endpoint */ .idVendor = 0x0403,
0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ .idProduct = 0x6001,
0x02, /* u8 ep_bmAttributes; Bulk */ .bcdDevice = 0x0400,
0x40, 0x00, /* u16 ep_wMaxPacketSize; */ .iManufacturer = STR_MANUFACTURER,
0x00, /* u8 ep_bInterval; */ .iProduct = STR_PRODUCT_SERIAL,
.iSerialNumber = STR_SERIALNUMBER,
},
.full = &desc_device,
.str = desc_strings,
};
/* Bulk-Out endpoint */ static const USBDesc desc_braille = {
0x07, /* u8 ep_bLength; */ .id = {
0x05, /* u8 ep_bDescriptorType; Endpoint */ .idVendor = 0x0403,
0x02, /* u8 ep_bEndpointAddress; OUT Endpoint 2 */ .idProduct = 0xfe72,
0x02, /* u8 ep_bmAttributes; Bulk */ .bcdDevice = 0x0400,
0x40, 0x00, /* u16 ep_wMaxPacketSize; */ .iManufacturer = STR_MANUFACTURER,
0x00 /* u8 ep_bInterval; */ .iProduct = STR_PRODUCT_BRAILLE,
.iSerialNumber = STR_SERIALNUMBER,
},
.full = &desc_device,
.str = desc_strings,
}; };
static void usb_serial_reset(USBSerialState *s) static void usb_serial_reset(USBSerialState *s)
@ -214,9 +222,15 @@ static int usb_serial_handle_control(USBDevice *dev, int request, int value,
int index, int length, uint8_t *data) int index, int length, uint8_t *data)
{ {
USBSerialState *s = (USBSerialState *)dev; USBSerialState *s = (USBSerialState *)dev;
int ret = 0; int ret;
//DPRINTF("got control %x, value %x\n",request, value); DPRINTF("got control %x, value %x\n",request, value);
ret = usb_desc_handle_control(dev, request, value, index, length, data);
if (ret >= 0) {
return ret;
}
ret = 0;
switch (request) { switch (request) {
case DeviceRequest | USB_REQ_GET_STATUS: case DeviceRequest | USB_REQ_GET_STATUS:
data[0] = (0 << USB_DEVICE_SELF_POWERED) | data[0] = (0 << USB_DEVICE_SELF_POWERED) |
@ -244,52 +258,6 @@ static int usb_serial_handle_control(USBDevice *dev, int request, int value,
dev->addr = value; dev->addr = value;
ret = 0; ret = 0;
break; break;
case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
switch(value >> 8) {
case USB_DT_DEVICE:
memcpy(data, qemu_serial_dev_descriptor,
sizeof(qemu_serial_dev_descriptor));
data[8] = s->vendorid & 0xff;
data[9] = ((s->vendorid) >> 8) & 0xff;
data[10] = s->productid & 0xff;
data[11] = ((s->productid) >> 8) & 0xff;
ret = sizeof(qemu_serial_dev_descriptor);
break;
case USB_DT_CONFIG:
memcpy(data, qemu_serial_config_descriptor,
sizeof(qemu_serial_config_descriptor));
ret = sizeof(qemu_serial_config_descriptor);
break;
case USB_DT_STRING:
switch(value & 0xff) {
case 0:
/* language ids */
data[0] = 4;
data[1] = 3;
data[2] = 0x09;
data[3] = 0x04;
ret = 4;
break;
case 1:
/* vendor description */
ret = set_usb_string(data, "QEMU " QEMU_VERSION);
break;
case 2:
/* product description */
ret = set_usb_string(data, "QEMU USB SERIAL");
break;
case 3:
/* serial number */
ret = set_usb_string(data, "1");
break;
default:
goto fail;
}
break;
default:
goto fail;
}
break;
case DeviceRequest | USB_REQ_GET_CONFIGURATION: case DeviceRequest | USB_REQ_GET_CONFIGURATION:
data[0] = 1; data[0] = 1;
ret = 1; ret = 1;
@ -633,6 +601,7 @@ static struct USBDeviceInfo serial_info = {
.product_desc = "QEMU USB Serial", .product_desc = "QEMU USB Serial",
.qdev.name = "usb-serial", .qdev.name = "usb-serial",
.qdev.size = sizeof(USBSerialState), .qdev.size = sizeof(USBSerialState),
.usb_desc = &desc_serial,
.init = usb_serial_initfn, .init = usb_serial_initfn,
.handle_packet = usb_generic_handle_packet, .handle_packet = usb_generic_handle_packet,
.handle_reset = usb_serial_handle_reset, .handle_reset = usb_serial_handle_reset,
@ -642,9 +611,7 @@ static struct USBDeviceInfo serial_info = {
.usbdevice_name = "serial", .usbdevice_name = "serial",
.usbdevice_init = usb_serial_init, .usbdevice_init = usb_serial_init,
.qdev.props = (Property[]) { .qdev.props = (Property[]) {
DEFINE_PROP_CHR("chardev", USBSerialState, cs), DEFINE_PROP_CHR("chardev", USBSerialState, cs),
DEFINE_PROP_HEX32("vendorid", USBSerialState, vendorid, 0x0403),
DEFINE_PROP_HEX32("productid", USBSerialState, productid, 0x6001),
DEFINE_PROP_END_OF_LIST(), DEFINE_PROP_END_OF_LIST(),
}, },
}; };
@ -653,6 +620,7 @@ static struct USBDeviceInfo braille_info = {
.product_desc = "QEMU USB Braille", .product_desc = "QEMU USB Braille",
.qdev.name = "usb-braille", .qdev.name = "usb-braille",
.qdev.size = sizeof(USBSerialState), .qdev.size = sizeof(USBSerialState),
.usb_desc = &desc_braille,
.init = usb_serial_initfn, .init = usb_serial_initfn,
.handle_packet = usb_generic_handle_packet, .handle_packet = usb_generic_handle_packet,
.handle_reset = usb_serial_handle_reset, .handle_reset = usb_serial_handle_reset,
@ -662,9 +630,7 @@ static struct USBDeviceInfo braille_info = {
.usbdevice_name = "braille", .usbdevice_name = "braille",
.usbdevice_init = usb_braille_init, .usbdevice_init = usb_braille_init,
.qdev.props = (Property[]) { .qdev.props = (Property[]) {
DEFINE_PROP_CHR("chardev", USBSerialState, cs), DEFINE_PROP_CHR("chardev", USBSerialState, cs),
DEFINE_PROP_HEX32("vendorid", USBSerialState, vendorid, 0x0403),
DEFINE_PROP_HEX32("productid", USBSerialState, productid, 0xfe72),
DEFINE_PROP_END_OF_LIST(), DEFINE_PROP_END_OF_LIST(),
}, },
}; };