diff options
| -rw-r--r-- | drivers/char/virtio_console.c | 49 | ||||
| -rw-r--r-- | include/linux/virtio_console.h | 23 |
2 files changed, 31 insertions, 41 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 48ce834306b..e53c52b904f 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -33,35 +33,6 @@ #include <linux/workqueue.h> #include "hvc_console.h" -/* Moved here from .h file in order to disable MULTIPORT. */ -#define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */ - -struct virtio_console_multiport_conf { - struct virtio_console_config config; - /* max. number of ports this device can hold */ - __u32 max_nr_ports; - /* number of ports added so far */ - __u32 nr_ports; -} __attribute__((packed)); - -/* - * A message that's passed between the Host and the Guest for a - * particular port. - */ -struct virtio_console_control { - __u32 id; /* Port number */ - __u16 event; /* The kind of control event (see below) */ - __u16 value; /* Extra information for the key */ -}; - -/* Some events for control messages */ -#define VIRTIO_CONSOLE_PORT_READY 0 -#define VIRTIO_CONSOLE_CONSOLE_PORT 1 -#define VIRTIO_CONSOLE_RESIZE 2 -#define VIRTIO_CONSOLE_PORT_OPEN 3 -#define VIRTIO_CONSOLE_PORT_NAME 4 -#define VIRTIO_CONSOLE_PORT_REMOVE 5 - /* * This is a global struct for storing common data for all the devices * this driver handles. @@ -150,7 +121,7 @@ struct ports_device { spinlock_t cvq_lock; /* The current config space is stored here */ - struct virtio_console_multiport_conf config; + struct virtio_console_config config; /* The virtio device we're associated with */ struct virtio_device *vdev; @@ -1243,7 +1214,7 @@ fail: */ static void config_work_handler(struct work_struct *work) { - struct virtio_console_multiport_conf virtconconf; + struct virtio_console_config virtconconf; struct ports_device *portdev; struct virtio_device *vdev; int err; @@ -1252,8 +1223,7 @@ static void config_work_handler(struct work_struct *work) vdev = portdev->vdev; vdev->config->get(vdev, - offsetof(struct virtio_console_multiport_conf, - nr_ports), + offsetof(struct virtio_console_config, nr_ports), &virtconconf.nr_ports, sizeof(virtconconf.nr_ports)); @@ -1445,19 +1415,16 @@ static int __devinit virtcons_probe(struct virtio_device *vdev) multiport = false; portdev->config.nr_ports = 1; portdev->config.max_nr_ports = 1; -#if 0 /* Multiport is not quite ready yet --RR */ if (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT)) { multiport = true; vdev->features[0] |= 1 << VIRTIO_CONSOLE_F_MULTIPORT; - vdev->config->get(vdev, - offsetof(struct virtio_console_multiport_conf, - nr_ports), + vdev->config->get(vdev, offsetof(struct virtio_console_config, + nr_ports), &portdev->config.nr_ports, sizeof(portdev->config.nr_ports)); - vdev->config->get(vdev, - offsetof(struct virtio_console_multiport_conf, - max_nr_ports), + vdev->config->get(vdev, offsetof(struct virtio_console_config, + max_nr_ports), &portdev->config.max_nr_ports, sizeof(portdev->config.max_nr_ports)); if (portdev->config.nr_ports > portdev->config.max_nr_ports) { @@ -1473,7 +1440,6 @@ static int __devinit virtcons_probe(struct virtio_device *vdev) /* Let the Host know we support multiple ports.*/ vdev->config->finalize_features(vdev); -#endif err = init_vqs(portdev); if (err < 0) { @@ -1556,6 +1522,7 @@ static struct virtio_device_id id_table[] = { static unsigned int features[] = { VIRTIO_CONSOLE_F_SIZE, + VIRTIO_CONSOLE_F_MULTIPORT, }; static struct virtio_driver virtio_console = { diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h index 92228a8fbcb..ae4f039515b 100644 --- a/include/linux/virtio_console.h +++ b/include/linux/virtio_console.h @@ -12,14 +12,37 @@ /* Feature bits */ #define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */ +#define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */ struct virtio_console_config { /* colums of the screens */ __u16 cols; /* rows of the screens */ __u16 rows; + /* max. number of ports this device can hold */ + __u32 max_nr_ports; + /* number of ports added so far */ + __u32 nr_ports; } __attribute__((packed)); +/* + * A message that's passed between the Host and the Guest for a + * particular port. + */ +struct virtio_console_control { + __u32 id; /* Port number */ + __u16 event; /* The kind of control event (see below) */ + __u16 value; /* Extra information for the key */ +}; + +/* Some events for control messages */ +#define VIRTIO_CONSOLE_PORT_READY 0 +#define VIRTIO_CONSOLE_CONSOLE_PORT 1 +#define VIRTIO_CONSOLE_RESIZE 2 +#define VIRTIO_CONSOLE_PORT_OPEN 3 +#define VIRTIO_CONSOLE_PORT_NAME 4 +#define VIRTIO_CONSOLE_PORT_REMOVE 5 + #ifdef __KERNEL__ int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)); #endif /* __KERNEL__ */ |