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char: replace PROP_CHR with CharBackend

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Store the property in a CharBackend instead of CharDriverState*.  This
also replace systematically chr by chr.chr to access the
CharDriverState*. The following patches will replace it with calls to
qemu_chr_fe CharBackend functions.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-12-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marc-André Lureau 2016-10-22 12:52:51 +03:00 • committed by Paolo Bonzini
parent ecb672d14f
commit becdfa00cf
37 changed files with 302 additions and 265 deletions
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22
hw/usb/dev-serial.c
View file

@ -103,7 +103,7 @@ typedef struct {
uint8_t event_trigger;
QEMUSerialSetParams params;
int latency; /* ms */
CharDriverState *cs;
CharBackend cs;
} USBSerialState;
#define TYPE_USB_SERIAL "usb-serial-dev"
@ -209,8 +209,10 @@ static uint8_t usb_get_modem_lines(USBSerialState *s)
int flags;
uint8_t ret;
if (qemu_chr_fe_ioctl(s->cs, CHR_IOCTL_SERIAL_GET_TIOCM, &flags) == -ENOTSUP)
if (qemu_chr_fe_ioctl(s->cs.chr,
CHR_IOCTL_SERIAL_GET_TIOCM, &flags) == -ENOTSUP) {
return FTDI_CTS|FTDI_DSR|FTDI_RLSD;
}
ret = 0;
if (flags & CHR_TIOCM_CTS)
@ -260,7 +262,7 @@ static void usb_serial_handle_control(USBDevice *dev, USBPacket *p,
case DeviceOutVendor | FTDI_SET_MDM_CTRL:
{
static int flags;
qemu_chr_fe_ioctl(s->cs,CHR_IOCTL_SERIAL_GET_TIOCM, &flags);
qemu_chr_fe_ioctl(s->cs.chr, CHR_IOCTL_SERIAL_GET_TIOCM, &flags);
if (value & FTDI_SET_RTS) {
if (value & FTDI_RTS)
flags |= CHR_TIOCM_RTS;
@ -273,7 +275,7 @@ static void usb_serial_handle_control(USBDevice *dev, USBPacket *p,
else
flags &= ~CHR_TIOCM_DTR;
}
qemu_chr_fe_ioctl(s->cs,CHR_IOCTL_SERIAL_SET_TIOCM, &flags);
qemu_chr_fe_ioctl(s->cs.chr, CHR_IOCTL_SERIAL_SET_TIOCM, &flags);
break;
}
case DeviceOutVendor | FTDI_SET_FLOW_CTRL:
@ -292,7 +294,7 @@ static void usb_serial_handle_control(USBDevice *dev, USBPacket *p,
divisor = 1;
s->params.speed = (48000000 / 2) / (8 * divisor + subdivisor8);
qemu_chr_fe_ioctl(s->cs, CHR_IOCTL_SERIAL_SET_PARAMS, &s->params);
qemu_chr_fe_ioctl(s->cs.chr, CHR_IOCTL_SERIAL_SET_PARAMS, &s->params);
break;
}
case DeviceOutVendor | FTDI_SET_DATA:
@ -321,7 +323,7 @@ static void usb_serial_handle_control(USBDevice *dev, USBPacket *p,
DPRINTF("unsupported stop bits %d\n", value & FTDI_STOP);
goto fail;
}
qemu_chr_fe_ioctl(s->cs, CHR_IOCTL_SERIAL_SET_PARAMS, &s->params);
qemu_chr_fe_ioctl(s->cs.chr, CHR_IOCTL_SERIAL_SET_PARAMS, &s->params);
/* TODO: TX ON/OFF */
break;
case DeviceInVendor | FTDI_GET_MDM_ST:
@ -368,7 +370,7 @@ static void usb_serial_handle_data(USBDevice *dev, USBPacket *p)
iov = p->iov.iov + i;
/* XXX this blocks entire thread. Rewrite to use
* qemu_chr_fe_write and background I/O callbacks */
qemu_chr_fe_write_all(s->cs, iov->iov_base, iov->iov_len);
qemu_chr_fe_write_all(s->cs.chr, iov->iov_base, iov->iov_len);
}
p->actual_length = p->iov.size;
break;
@ -488,7 +490,7 @@ static void usb_serial_realize(USBDevice *dev, Error **errp)
usb_desc_init(dev);
dev->auto_attach = 0;
if (!s->cs) {
if (!s->cs.chr) {
error_setg(errp, "Property chardev is required");
return;
}
@ -499,11 +501,11 @@ static void usb_serial_realize(USBDevice *dev, Error **errp)
return;
}
qemu_chr_add_handlers(s->cs, usb_serial_can_read, usb_serial_read,
qemu_chr_add_handlers(s->cs.chr, usb_serial_can_read, usb_serial_read,
usb_serial_event, s);
usb_serial_handle_reset(dev);
if (s->cs->be_open && !dev->attached) {
if (s->cs.chr->be_open && !dev->attached) {
usb_device_attach(dev, &error_abort);
}
}