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Add new client_present and client capabilities fields to QXLRom

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The client_present field is a byte that is set of non-zero when a
client is connected and to zero when no client is connected.

The client_capabilities[58] array contains 464 bits that indicate the
capabilities of the client. Each bit corresponds to a
SPICE_DISPLAY_CAP_* capability. In particular, if the client has
capability C, then bit (C % 8) in byte (C / 8) is set. The capability
bits only have a defined meaning when a client is connected, ie., when
client_present is non-zero. The number 58 was chosen to fill out a
cache line in QXLRom.

A new QXL_INTERRUPT_CLIENT interrupt is defined, which will be raised
whenever a client connects or disconnects.
This commit is contained in:
Søren Sandmann Pedersen 2012-08-24 17:53:13 -04:00
parent 8459b35ec0
commit 361fd166b2
1 changed files with 4 additions and 1 deletions
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spice/qxl_dev.h
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@ -148,7 +148,9 @@ typedef struct SPICE_ATTR_PACKED QXLRom {
uint8_t slot_gen_bits;
uint8_t slot_id_bits;
uint8_t slot_generation;
uint8_t padding[3]; /* Padding to 32bit align */
/* appended for qxl-4 */
uint8_t client_present;
uint8_t client_capabilities[58];
} QXLRom;
/* qxl-1 compat: fixed */
@ -231,6 +233,7 @@ SPICE_RING_DECLARE(QXLReleaseRing, uint64_t, QXL_RELEASE_RING_SIZE);
#define QXL_INTERRUPT_CURSOR (1 << 1)
#define QXL_INTERRUPT_IO_CMD (1 << 2)
#define QXL_INTERRUPT_ERROR (1 << 3)
#define QXL_INTERRUPT_CLIENT (1 << 4)
/* qxl-1 compat: append only */
typedef struct SPICE_ATTR_PACKED QXLRam {